[Federal Register Volume 64, Number 55 (Tuesday, March 23, 1999)]
[Rules and Regulations]
[Pages 13897-13912]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 99-6824]
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DEPARTMENT OF LABOR
Occupational Safety and Health Administration
29 CFR Part 1910
[Docket No. S-022]
RIN 1218-AB55
Dipping and Coating Operations
AGENCY: Occupational Safety and Health Administration (OSHA), Labor.
ACTION: Final rule.
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SUMMARY: OSHA's standards for dipping and coating operations, codified
at sections 1910.108 and 1910.94(d), are designed to protect employees
from fire, explosion, and other hazards associated with these
operations. On April 7, 1998 (63 FR 16918), OSHA published proposed
revisions to these standards in the Federal Register. The Federal
Register announcement requested comments on the proposed rule, as well
as on three major issues identified by OSHA. Based on these comments
and other considerations, the Agency has developed the final standard
to accomplish several goals: To rewrite the former standards in plain
language; to consolidate the former requirements in sequential sections
(sections 1910.122 through 1910.126 in subpart H of part 1910); and to
update the former standards to increase the compliance options
available to employers. In addition to achieving these goals, OSHA
concludes that the final rule being published today will enhance
employee protection by making it more understandable and useful to
employers and employees and more flexible and performance-oriented than
the former rules. The final rule accomplishes these goals without
increasing the regulatory burden of employers or reducing employee
protection.
DATES: The final rule becomes effective April 22, 1999. The
incorporation by reference of certain publications listed in the final
rule is approved by the Director of the Federal Register as of April
22, 1999.
ADDRESSES: In accordance with 28 U.S.C. 2112(a), the Agency designates
the Associate Solicitor for Occupational Safety and Health, Office of
the Solicitor of Labor, Room S-4004, U.S. Department of Labor, 200
Constitution Avenue, N.W., Washington, DC 20210 to receive petitions
for review of the final rule.
FOR FURTHER INFORMATION CONTACT: Ms. Bonnie Friedman, Director, Office
of Public Affairs, Room N-3647, Occupational Safety and Health
Administration, U.S. Department of Labor, 200 Constitution Avenue,
N.W., Washington, DC 20210; telephone: (202) 693-1999. For additional
copies of this Federal Register notice contact: OSHA, Office of
Publications, U.S. Department of Labor, Room N-3101, 200 Constitution
Avenue, N.W., Washington, DC 20210; telephone: (202) 693-1888.
Electronic copies of this Federal Register notice, as well as news
releases, fact sheets, and other relevant documents, can be obtained
from OSHA's web page on the Internet at http://www.OSHA.gov.
SUPPLEMENTARY INFORMATION:
I. Background
In May 1995, President Clinton asked all Federal regulatory
agencies to review their regulations to determine if they were
inconsistent, duplicative, outdated, or in need of being rewritten in
plain language. In response, OSHA conducted a line-by-line review of
its standards, and committed the Agency to eliminating those found to
be unnecessary, duplicative, or inconsistent and to rewriting those
found to be complex and outdated. The Agency's dip-tank standards were
identified by that review as needing clarification.
OSHA chose to rewrite these standards in plain language because dip
tanks pose serious hazards to employees engaged in dipping and coating
operations. There are hundreds of thousands of dip tanks in America.
Wherever metals are coated, furniture is stripped and refinished,
automobiles are repaired, aircraft are maintained, and leather is
tanned, dip tanks are an essential part of the process. The liquids
used to perform these operations are often dangerous, both from a
safety and health standpoint. These liquids include flammable
substances such as acetone, corrosive materials such as cyanide acids
and chromic acids, and chronic toxins such as perchloroethylene and
methylene chloride. Most facilities with dip tanks are small: OSHA
estimates that the majority of these facilities have fewer than 20
employees. Industries with large numbers of dip tanks include
automobile manufacturing, electronic manufacturing, electroplating,
defense, transportation equipment, computer manufacturing, automobile
repair, paint stripping, and other service industries.
The final rule does not change the technical substance of the
former standards or alter the regulatory obligations placed on
employers or the safety and health protections provided to employees.
OSHA believes, moreover, that the performance-oriented language of the
final rule will facilitate compliance because it gives employers more
compliance options than they had under the former standards.
II. Summary and Explanation of the Final Rule
This section consists of five parts. Part 1 summarizes the comments
received by OSHA on the three issues raised in the proposal. The issues
are listed together, followed by the comments on each issue and OSHA's
responses. The second part summarizes the comments on specific
paragraphs of the proposal, as well as OSHA's discussion of the
comments. In the third part, OSHA responds to general comments made
about the rulemaking, while the fourth part describes technical and
editorial revisions made by OSHA to the final regulatory text. Part 5
consists of tables that compare provisions of the former and final
rules.
Note that OSHA has redesignated the section numbers in the final
rule as 1910.122 through 1910.126, instead of 1910.121 through
1910.125, as proposed. This revision is explained more fully in Part 4,
paragraph a.
Part 1
OSHA received the following comments on the three issues raised in
the proposal.
(a) The first issue, which addressed whether the plain-language
version of the final rule reduces employee protections or increases
employer burden when compared with the former standards, received only
one comment (Ex. 4-13). This commenter stated that the plain-language
version improved employee protection because the performance-oriented
language would ``accommodate technical advancement in industries
impacted by the standard.'' This comment substantiates the Agency's
finding that the proposed standard ``will enhance employee protection
by * * * providing additional compliance flexibility to employers.''
(63 FR 16918)
(b) The second issue, which concerned commenters' preference for
the traditional format or question-and-
[[Page 13898]]
answer format (both of which were proposed), elicited five comments.
One commenter (Ex. 4-6) had no preference, stating that ``either plain
language alternative format * * * [is] acceptable and more user
friendly than the current standard.'' Another commenter (Ex. 4-7)
preferred the traditional format but provided no rationale for this
preference. Three commenters (Exs. 4-3, 4-5, and 4-13) preferred the
traditional format on the grounds that it simplified the regulatory
text and made it easy to follow. One of these commenters (Ex. 4-5)
noted that the paragraph headings in the traditional format are
``informative and useful; they should make it easier [to find
information quickly].'' Another commenter (Ex. 4-12) objected to the
question-and-answer format because it is ``redundant and more time
consuming to review,'' adding that locating a specific requirement
depends too much on the reader's asking of the correct question.
Additionally, this commenter stated that existing training programs
``are built around the traditional format, and a change of format would
require a more comprehensive approach than proposed here.'' One
commenter (Ex. 4-8) favored the question-and-answer format because the
simple paragraphs are ``devoted to a single, unified topic'' and ``are
more 'user friendly' and thus will be more easily understood.''
Existing Federal policy favors the use, when appropriate, of the
question-and-answer format and personal pronouns to enhance
understandability and directness. Based on a recent memorandum from
President Clinton (Presidential Memorandum for the Heads of Executive
Departments and Agencies, June 1, 1998) and additional guidance
received from the National Partnership for Reinventing Government (Vice
Presidential Memorandum to the Heads of Executive Departments and
Agencies, July 29, 1998), OSHA decided that the final rule will follow
the question-and-answer plain-language format. To address commenters'
concerns (Exs. 4-3, 4-5, and 4-13), OSHA removed proposed sentences
that were repeated in both the question and answer to the question,
shortened the questions, and made them specific to the topic of the
provision.
(c) The third issue raised in the proposal asked whether provisions
of the former dip-tank standards should be updated. Only one comment
(Ex. 4-12) was received on this topic, and this commenter stated that
there was no need to update the standards further. The Agency,
therefore, concludes that no further updating of the dip-tank standards
is necessary at this time.
Part 2
OSHA received the following comments on specific proposed
paragraphs.
Proposed paragraphs 1910.122(a) and (b) (final paragraphs
1910.123(a) and (b)), which addressed the scope of the rule, received
one comment (Ex. 4-4). This commenter stated that the two paragraphs
should be combined because ``[s]eparating them serves no purpose.''
OSHA has not combined paragraphs (a) and (b) in the final rule because
the Agency believes it is appropriate to separate provisions
establishing the final rule's applicability from those providing
examples of covered operations.
Four commenters (Exs. 4-6, 4-7, 4-9, and 4-11) were concerned that
the scope of the proposed rule had been enlarged over that of the
former standards because the proposal used the phrase ``liquid other
than water.'' For example, one commenter (Ex. 4-6) interpreted this
phrase as including, for example, water-based materials. According to
this commenter, ``the hazard associated with materials having high
flash points (e.g. greater than 140 or 200 degrees Fahrenheit; Class II
or Class IIIA liquids), and low toxicity, do [sic] not appear to
warrant inclusion in this type of a standard. This can include numerous
water-based materials that can be used for cleaning, coating or
treating.''
Another commenter (Ex. 4-7) argued that the scope of the proposed
rule was broader than that of the former standard because the hazard
assessment required by paragraph (d)(2) of former section 1910.94 had
been removed and ``[w]ithout a hazard assessment the proposed rule's
coverage would significantly expand and add burdensome requirements
where there is little hazard.'' Another commenter (Ex. 4-9) stated,
``Logically, the proposed rule should [require employers to] assess the
severity and exposure to a hazard based on existing OSHA requirements
(Z table). Then if the hazard or exposure warranted employee
protection, the proposed rules would be required.''
The major concern of these commenters was that the scope of the
rule had been broadened beyond that of former sections 1910.94(d) and
1910.108. In situations where the ventilation requirements of former
paragraph 1910.94(d) did not apply (because employers were using
cleaning solutions such as soap and water in their dip tanks), the
commenters assumed that the training, personal-protection, hygiene-
facilities, physical-examination, and first-aid requirements also did
not apply. This assumption is not correct. Under the former rule
(1910.94(d)(2)) and the final rule (1910.124(b)), even if a dipping or
coating operation is exempt from the ventilation requirements, it may
still be covered by other provisions, depending on the characteristics
of the operation. For example, the hygiene facilities provision of the
final rule applies when employees are exposed to ``liquids that may
burn, irritate, or otherwise harm their skin''; this clarification is
explained below in OSHA's response to the comments on proposed
paragraph 1910.123(g). Similarly, the physical-examination and first-
aid requirements also apply when specific conditions exist (see the
discussion of paragraph 1910.123(h) below). As discussed below, these
provisions are no broader in scope in the final rule than they were
before.
In addition, the final rule cross-references the personal-
protective equipment (PPE) requirements of subpart I, instead of
including them in the rule. The effect of this change, which is
described in connection with the discussion below of paragraphs
1910.123(e) and (f), is that the final rule's PPE requirements will
only be triggered when the contents of the dip tank warrant use of PPE.
Proposed paragraph 1910.122(d) (final paragraph 1910.123(d))
defined ``approved'' to mean that the ``equipment is listed or approved
by a nationally recognized testing laboratory as defined by
Sec. 1910.7.'' One commenter (Ex. 4-4) recommended that the definition
be revised to ``allow equipment and systems that can be shown to meet a
recognized design standard.'' OSHA has not adopted this suggestion
because 29 CFR 1910.7 ensures that a nationally recognized testing
laboratory (NRTL) has evaluated approved equipment and found it to be
safe.
In defining the term ``approved,'' OSHA refers to section 1910.7
because it permits uniform and high-quality evaluation of health and
safety equipment required by OSHA standards. OSHA has recognized many
NRTLs under 29 CFR 1910.7 to provide equipment manufacturers with
testing services; a list of these laboratories can be obtained from
OSHA's Technical Support Directorate. In addition, this commenter is
recommending a substantive revision to the former standards that OSHA
has not considered, and which, therefore, is beyond the scope of this
rulemaking.
Proposed paragraph 1910.122(d) (final paragraph 1910.123(d))
defined
[[Page 13899]]
``combustible liquid'' as ``a liquid having a flash point of 100 deg. F
(37.8 deg. C) or above.'' One commenter (Ex. 4-1) recommended that
``[t]he * * * definition should be expanded to state `but less than
200 deg. F,' '' and another commenter (Ex. 4-7) stated that Class III
liquids should not be covered and Class II liquids should be defined as
having ``a flash point above * * * 100 degrees Fahrenheit and below 140
degrees Fahrenheit.''
OSHA has retained the proposed definition of ``combustible
liquids'' in the final rule because it is consistent with the
definition of such liquids in section 1910.106(a) (as well as NFPA 34-
1995); in addition, the regulated community has considerable experience
using this definition when managing flammable and combustible liquids.
However, the Agency also has added a statement at the beginning of
section 1910.125 of the final rule excepting combustible liquids with
flashpoints of 200 deg. F or above from the rule unless the liquid is
heated as part of the dipping or coating operation or a heated object
is placed in an unheated liquid having such a flashpoint. This
exception, which responds to the comments on this provision, is
warranted because no combustible or explosive vapors are produced under
these conditions.
Proposed paragraph 1910.122(d) (final paragraph 1910.123(d))
defined ``dip tank'' as ``a tank, vat, or container that holds liquids
used for dipping or coating operations. In dipping or coating
operations, an object may be immersed totally or partially in a dip
tank, or held in the vapor above the dip tank.'' There were four
comments on this definition (Exs. 4-1, 4-6, 4-7, and 4-10). One
commenter (Ex. 4-1) observed that objects are often held ``within the
vapor layer, which is above the liquid level and below the condensing
coils within the tank.'' OSHA agrees with this commenter and, in the
final rule, revised the last part of the second sentence of the
definition to read ``or suspended in a vapor coming from the dip
tank.''
This commenter (Ex. 4-1) also noted that OSHA Instruction STD 1-5.5
states that parts-washing sinks are not dip tanks. Other commenters
(Exs. 4-6, 4-7, and 4-10) argued that containers having a capacity or
surface area below a specific level (e.g., 60 gallons or 25 square
feet) should not be covered by the definition.
The proposed definition of ``dip tank'' was adopted from those in
former paragraphs 1910.94(d)(1)(i) and 1910.108(a)(1), which contained
no exceptions based on the dip tank's type, capacity, or surface area.
Therefore, all containers, regardless of capacity or surface area, are
covered by the applicable requirements of the final rule; to exempt
some tanks based on these considerations would diminish the protections
provided to employees by the final rule. The Agency also notes that
OSHA Instruction STD 1-5.5, which was published in 1978, pertained to
parts-washing tanks that were supplied with drains. The use of such
tanks is no longer permitted by Environmental Protection Agency rules,
which prohibit the draining of flammable or combustible liquids into
sewer systems or ground-water reservoirs. Consequently, OSHA will soon
issue a directive canceling STD 1-5.5.
Another commenter (Ex. 4-7) recommended that ``OSHA should use
[its] existing definition [of dip tanks] in 29 CFR 1910.108(a)(1).'' In
response, OSHA notes that the definition of ``dip tank'' in former
paragraph 1910.108(a)(1) covered only flammable and combustible
liquids, while other liquids were covered by the definition in former
paragraph 1910.94(d)(1)(i). The final standard's definition of dip tank
combines the coverage and operations addressed by the definitions in
both sections 1910.94(d) and 1910.108.
Proposed paragraph 1910.122(d) (final paragraph 1910.123(d))
defined ``vapor area'' as ``any space containing dipping or coating
operations, its drain boards, and associated drying or conveying
equipment.'' Four commenters (Exs. 4-1, 4-2, 4-4, and 4-7) stated that
the definition was vague and should be revised to ``provide an
objective and simple test to determine the boundaries of a `vapor area'
so that employers complying with the standard can clearly establish the
point in their operations at which such precautions as explosion-proof
or intrinsically electrical equipment must be used'' (Ex. 4-2). A
second commenter (Ex. 4-4) stated that ``[t]he definition [of vapor
area] should include any associated equipment that might operate above
25% of the LFL, as is the case in NFPA 34's definition in Section 1-
6.'' This commenter also recommended that OSHA adopt the definition of
``vapor source'' from section 1-6 of NFPA 34-1995. Finally, a third
commenter (Ex. 4-7) urged OSHA to ``consider adding `or hazardous
concentrations of vapors' [to the definition] so that this encompasses
both [former] regulations.''
OSHA agrees with these commenters that the definition of ``vapor
area'' in the final rule should be more specific. Consequently, the
Agency revised the definition to include areas in which the
concentration of flammable vapors exceeds 25% of the LFL. The revised
definition, therefore, is consistent with the phrase ``dangerous
quantities'' in the definition of ``vapor area'' in former paragraph
1910.108(a)(2). However, OSHA sees no need to adopt a definition for
``vapor source'' because this term is not used in the regulatory text.
Proposed paragraph 1910.123(a) (final paragraph 1910.124(a)), which
addressed the construction requirements for dip tanks and would have
required the tank and its drain boards to be able ``to withstand any
expected load,'' received only one comment (Ex. 4-7): ``A more concise
wording would read `Dip tanks must be constructed for their intended
service.' '' The Agency interprets the phrase ``to withstand any
expected load'' in the standard as referring to the strength of the dip
tank. The term ``service'' in the commenter's recommended language
appears to address the usefulness of a dip tank, not its strength.
Therefore, OSHA is not adopting this commenter's suggestion.
Proposed paragraph 1910.123(b) (final paragraph 1910.124(b)), which
specified the requirements for adequate ventilation, elicited only the
following comment (Ex. 4-4): ``NFPA 34 Section 5-2 is more definitive
[than the parallel provision in the proposed rule] in that it sets a
performance requirement for the ventilation system to limit the extent
of the vapor area to not more than 5 feet beyond the vapor source, as
defined in NFPA 34.'' OSHA believes that, for optimal employee
protection and consistency with the requirements of former paragraphs
1910.94(d)(3) and 1910.108(b)(1), no area above the dip tank may have a
concentration greater than 25% of the lower flammable limit for the
substance in the tank. Additionally, paragraph 1910.124(b)(4) of the
final standard states, as did the proposal, that the employer who
complies with NFPA 34-1995 also meets the mechanical-ventilation
requirements of the OSHA standard.
Proposed paragraph 1910.123(b)(2) (final paragraph 1910.124(b)(3)),
which concerned tank covers and materials that may be used as
alternatives to ventilation in some circumstances, elicited only one
comment. This commenter (Ex. 4-4) stated that ``[w]hile a tank cover
will reduce ignitable vapors, it can be argued that the floating beads
[allowed by the standard to replace or supplement ventilation in some
cases] will increase the surface area from which vapors can evolve.''
According to the final rule, however, tank covers or floating materials
[[Page 13900]]
(including floating beads) cannot be used when these controls do not
``maintain the airborne concentrations of the hazardous material and
the worker's exposure below the limits specified in paragraphs (b)(1)
and (b)(2) of this section.'' OSHA, therefore, believes that this
commenter's concern has been addressed by this revision to the final
rule.
Proposed paragraph 1910.123(b)(3) (final paragraph 1910.124(b)(4)),
which contained ventilation specifications, elicited only one comment
(Ex. 4-4); this commenter urged OSHA to adopt the ventilation design
and installation requirements in NFPA 91. OSHA reviewed the most recent
NFPA 91 consensus standard and believes that it is a useful reference
for constructing and installing ventilation systems; unlike the
references specified in final paragraph 1910.124(b)(4), however, NFPA
91 does not contain the information necessary to determine the volumes
and flow rates necessary to remove vapor hazards from the workplace.
Proposed paragraph 1910.123(b)(4) (final paragraph 1910.124(b)(5)),
which addressed mechanical ventilation, received only one comment (Ex.
4-7). This commenter stated that this paragraph does not allow
employers to use dilution (non-mechanical) ventilation to control low-
level exposures to airborne contaminants. This is a misinterpretation
of proposed paragraph 1910.123(b)(4), however, because that paragraph
does not require that mechanical ventilation be used, only that it
``draw the flow of air into a hood or exhaust duct'' when it is used.
Therefore, non-mechanical dilution ventilation (e.g., open windows and
doors) can be used when it meets the specifications of final paragraphs
1910.124(b)(1) and (b)(2).
Proposed paragraph 1910.123(c)(2)(i) (final paragraph
1910.124(c)(2)(i)), which specified that recirculated exhaust air be
free of solid particulates, was the subject of a comment (Ex. 4-7) that
stated ``this requirement is unnecessary unless the particulate poses a
health or fire hazard.'' OSHA agrees that this requirement applies only
to particulates that pose health and fire hazards to employees, and has
revised the final provision accordingly.
Proposed paragraph 1910.123(c)(3)(iii), which required that the
flow rate of make-up air be measured when an exhaust hood is installed,
elicited two comments (Exs. 4-3 and 4-10). The first commenter (Ex. 4-
3) endorsed the proposed revision because it would improve compliance,
while the second commenter (Ex. 4-10) noted, ``[For small operations,
t]here [may be] numerous exhausts and numerous sources of make-up air.
In these cases the flow rate of make up air can not be measured.''
OSHA has decided that this provision is redundant with the
requirements of final paragraph 1910.124(d)(1), which requires that the
correct airflow be evaluated and maintained to ensure that the volume
of outside air is at least 90 percent of the volume of the exhaust air.
Therefore, the paragraph as proposed is not included in the final rule.
Proposed paragraph 1910.123(d) (final paragraph 1910.124(e)), which
addressed employee entry into dip tanks, received only one comment (Ex.
4-7). This commenter asked whether the permit requirements of OSHA's
Permit-Required Confined Spaces standard (29 CFR 1910.146) will apply
to dip tanks because that standard defines confined-space entry as
``breaking the plane of the confined space with any part of the body.''
This commenter observed that ``[i]n dipping and coating operations
employees may be required to break the plane of the tank to dip or coat
parts.''
According to paragraph (b) of 29 CFR 1910.146, a permit-required
confined space must be ``large enough and so configured that an
employee can bodily enter and perform assigned work,'' have ``limited
or restricted means for entry or exit,'' and not be ``designed for
continuous employee occupancy.'' In response to this commenter, OSHA
notes that entry into dip tanks that meet this definition must be done
in accordance with the requirements of 29 CFR 1910.146, and that the
standard would be cited if improper entry occurs.
Proposed paragraph 1910.123(e) (final paragraph 1910.124(f)), which
addressed training requirements for employees who work in or near a
vapor area, was found by two commenters (Exs. 4-1 and 4-7) to duplicate
other OSHA training requirements. The proposed provision would have
required employers to instruct employees working in or near a vapor
area in the hazards of their jobs, first-aid products, and PPE. One
commenter (Ex. 4-7) stated that ``[t]he requirements of 29 CFR
1910.1200 already require [hazard training]. This [proposed]
requirement is duplicative and burdensome. [Also, 29 CFR 1910.38 and
1910.151 specify first-aid procedures.]''
OSHA agrees that the proposed requirement for hazard training would
have duplicated the provisions of paragraph (h) of the Hazard
Communication standard, 29 CFR 1910.1200, and has therefore deleted it
from the final Dipping and Coating Operations standard. However, OSHA
does not agree that paragraph (a) of section 1910.38 addresses first
aid directly; instead, it requires that designated employees be trained
to assist ``in the safe and orderly emergency evacuation of [other]
employees.'' Paragraph (c) of section 1910.151 requires that ``a person
or persons be trained to render first aid'' when ``an infirmary,
clinic, or hospital is not in near proximity * * * for the treatment of
all injured employees * * *.'' The first-aid provision of section
1910.151, therefore, does not duplicate the proposed requirement, which
stated that ``all employees who work in or near a vapor area must
receive ``appropriate first-aid instruction.'' Adopting the first-aid
requirements of section 1910.151 in lieu of the proposed requirement
would reduce substantially the protection afforded to employees by this
paragraph of the final rule, and OSHA has thus not adopted this
suggestion.
For clarity, OSHA has revised the language of paragraph 1910.124(f)
to state that employees must ``know'' about the first-aid procedures
appropriate to the dipping and coating hazards to which they are
exposed. This revision eliminates the proposed provision, which would
have required employers to document that employees involved in dipping
or coating operations had received the required instruction.
Proposed paragraph 1910.123(f), which specified requirements for
personal protective equipment (PPE), elicited two comments (Exs. 4-1
and 4-7) recommending that the provision be dropped because it
duplicated the hazard-assessment, training, and PPE requirements of 29
CFR subpart I. Two other commenters (Exs. 4-10 and 4-11) noted that a
hazard assessment conducted under the proposed provision would require
PPE when employees were exposed to minor hazards, such as soap-and-
water solutions. A fifth commenter (Ex. 4-13) recommended that the ANSI
consensus standard for eye and face protection, ANSI Z87.1-1989, be
referenced in this paragraph.
OSHA agrees that this proposed paragraph would have duplicated the
requirements of 29 CFR 1910, subpart I, and has accordingly deleted it
from the final standard. OSHA notes that the requirements of 29 CFR
1910, subpart I, including the Respiratory Protection requirements at
section 1910.134, have always applied, as appropriate, to employers who
are involved in dipping or coating operations, and will continue to do
so. Paragraph (b)(1) of section 1910.133 (``Eye and Face Protection''),
[[Page 13901]]
which applies to employers who engage in dipping or coating operations,
refers to ANSI Z87.1-1987; thus, adding a cross-reference to the ANSI
standard is not necessary, as suggested by one commenter (Ex. 4-1).
Proposed paragraph 1910.123(g) (final paragraph 1910.124(g)), which
addressed hygiene facilities, elicited two comments. The first
commenter (Ex. 4-3) stated that proposed paragraph (g)(3), which would
have regulated washing facilities, was too vague and recommended that a
minimum number of basins be specified. The second commenter (Ex. 4-7),
however, found that proposed paragraph (g)(3) was ``well stated'' but
that proposed paragraphs (g)(1) and (g)(2), which would have required
storage, emergency-shower, and eye-wash facilities, were ``unnecessary
and burdensome.''
On review of these provisions (proposed paragraphs (g)(1) and
(g)(2)), OSHA has decided to narrow their application to those
employees exposed to liquids that ``burn, irritate, or otherwise [are]
harmful to the skin.'' This revision is consistent with section
1910.94(d) of the former rule.
To clarify the requirement in proposed paragraph (g)(3) and to
ensure that an adequate number of hygiene facilities is provided to
employees, OSHA has revised this provision to specify, consistent with
former section 1910.94(d)(9)(ix), that ``at least one basin with a hot-
water faucet [be provided] for every 10 employees who work with such
liquids.''
Proposed paragraph 1910.123(h) (final paragraph 1910.124(h)), which
specified physical examination and first-aid requirements, received two
comments (Exs. 4-7, 4-10) that were concerned with the regulatory
burden imposed by the proposed paragraph. One commenter stated that
``[p]hysical exams may be required dependent on the health risk but
certainly [are] not required for cleaning operations using mild
surfactants'' (Ex. 4-7). This commenter noted that the medical service
and first-aid requirements of section 1910.151 appear to duplicate the
provisions of this paragraph, and that many employers ``utilize first
aid providers who bring their supplies with them to an emergency.'' The
second commenter (Ex. 4-10) believed that the requirement proposed in
paragraph (h)(4), which would have required first-aid supplies to be
located near dipping and coating operations, contradicted the provision
in proposed paragraph (h)(2) for a properly designated person to treat
skin abrasions, cuts, rashes, or open sores, stating that ``[t]he
presence of first aid supplies near the operation would encourage
administration of first aid by the operators [who] are not necessarily
the properly designated people.''
OSHA has not adopted the suggestions of these commenters because
doing so would reduce the level of employee protection provided by the
final rule. For example, even a mild surfactant may worsen a serious
skin lesion and cause it to require the attention of a health care
provider. Further, requiring that the first-aid kit be located ``near
the dipping and coating operations'' could facilitate more rapid
intervention in a medical emergency than merely having such supplies
``readily available,'' as required by paragraph (b) of section
1910.151. The Agency notes, however, that paragraph (h)(4) of the final
rule specifies only that the first-aid supplies be ``appropriate.''
This means that less hazardous dipping or coating operations would be
likely to require fewer first-aid supplies than more hazardous
operations. In response to the comments in Ex. 4-10, the Agency finds
that final rule paragraphs 1910.124 (h)(2) and (h)(4) do not contradict
each other; paragraph (h)(2) addresses the treatment of skin abrasions,
cuts, rashes, or open sores to prevent skin exposure to hazardous
chemicals, while paragraph (h)(4) designates the location of first-aid
supplies to be used after an injurious exposure has occurred.
As noted above in the summary and explanation for final rule
paragraph 1910.124(g), the Agency has determined that these
requirements apply only when specific liquids are being used.
Accordingly, paragraph 1910.124 (h) of the final rule has been revised
to require physical examination and first aid only when employees are
exposed to ``liquids that may burn, irritate, or otherwise harm their
skin[.]''
Proposed paragraph 1910.123(j) (final paragraph 1910.124(j)),
addressed the inspection and maintenance of dipping and coating
operations, including quarterly inspections of ventilation systems. One
commenter (Ex. 4-3) endorsed the proposed language because it would
improve compliance, while another commenter (Ex. 4-7) found the
requirement ``too prescriptive'' and recommended that it be replaced
with more performance-based language. This commenter stated that ``[i]n
some corrosive atmospheres[,] quarterly [inspections] would be too
infrequent. In other non-corrosive atmospheres[,] quarterly
[inspections] would be too frequent and a waste of maintenance
resources'' (Ex. 4-7).
The proposed requirement was adapted from paragraph (d)(8)(i) of
former section 1910.94, which specified inspections ``[a]t intervals of
not more than 3 months operation.'' Consequently, this commenter (Ex.
4-7) is recommending a substantive revision to the standard that is
beyond the scope of this rulemaking. OSHA also believes that the final
rule's phrase, ``at least quarterly,'' imposes a duty on employers to
inspect at more frequent intervals when doing so is necessary ``to
ensure that proper rates are maintained.''
Proposed paragraph 1910.124 (final paragraph 1910.125), which
specified requirements for dipping and coating operations that use
flammable or combustible liquids, elicited only one comment (Ex. 4-4).
This commenter encouraged OSHA to reinstate the former rule's
requirement for bottom drains, at least for large tanks, and to adopt
the language of NFPA 34-1995, section 3-6, because ``draining the tank,
particularly a large one, also removes a substantial amount of the fuel
from the fire area quickly. Deleting this requirement presents a much
greater risk for a severe and long-lived fire.''
OSHA agrees with the commenter that properly installed bottom
drains are necessary to quickly remove the substantial quantities of
flammable and combustible liquids often present in large dip tanks;
such removal reduces the risk of severe and long-lived fires that,
under some conditions (e.g., delayed evacuation/exit), could pose
serious risks to employees. Accordingly, paragraph 1910.125(c) of the
final rule requires bottom drains for large dip tanks. However, unlike
paragraph (c)(3) of former section 1910.108 or section 3-6 of the NFPA
standard, this paragraph of the final rule uses performance-based
language. For example, the final rule requires only that tanks
discharge to a safe location, not to ``closed properly vented salvage
tanks or to a safe location outside,'' as specified by the former
standard. The Agency believes that the term ``safe location'' includes
``closed and vented salvage tanks.'' The former standard and NFPA 34-
1995 also specify the pipe sizes that must be used to drain dip tanks
of various capacities, while this paragraph of the final rule requires
only that the pipes be ``correctly sized'' to remove the flammable
liquid. The revised language does specify, however, that the pipes be
capable of removing the dip tank's contents ``within five minutes after
the fire begins,'' consistent with the language in NFPA 34-1995. This
revision thus replaces the table in former paragraph
1910.108(c)(3)(iii) that specified correct pipe size and clarifies the
requirement in former paragraph
[[Page 13902]]
1910.108(c)(3)(i) that ``bottom drains [be] * * * arranged to quickly
drain the tank * * *''
Paragraph 1910.125(c) of the final rule retains the exception from
the bottom-drain requirements for dip tanks that contain highly viscous
liquids. To clarify the provision, however, OSHA has replaced the
phrase ``makes this impractical'' with the language ``does not allow
the liquid to flow or be pumped easily.'' Also included in this
paragraph of the final rule is the provision in NFPA 34-1995 that
excepts dip tanks that have automatic-closing doors from the bottom-
drain requirements; former section 1910.108 did not have this
exception. OSHA believes that automatic-closing doors eliminate fire
and explosion hazards if they meet the requirements of paragraph (f)(3)
of final section 1910.125 and, therefore, will protect employees at
least as well as bottom drains.
Proposed paragraph 1910.124(b)(5) (final paragraph 1910.125(b)(2)),
which addressed the clogging of overflow pipes, elicited only the
following comment (Ex. 4-4): ``[The NFPA Committee is] not aware of any
problems with firefighting foam clogging the overflow pipe on a dip
tank.'' The proposed provision was adopted from a requirement in
paragraph (g)(3) of former section 1910.108, and OSHA believes that it
is necessary to address the possibility of overflow pipe blockage.
Paragraph 1910.125(b)(2) of the final rule thus includes the provision
as proposed.
Proposed paragraph 1910.124(d) (final paragraph 1910.125(e)), which
required the control of ignition sources, received only one comment
(Ex. 4-4). This commenter stated that OSHA should substitute chapter 4
of NFPA 34-1995 for this entire paragraph of the final rule because, in
the commenter's opinion, the NFPA chapter provides ``diagrams that
greatly simplify interpreting the requirements and establishing the
limits of the hazardous (classified) location.'' OSHA finds that by
defining the vapor area and the hazardous area surrounding the vapor
area in objective terms, paragraph 1910.125(e) of the final rule will
provide employers with the information necessary to identify hazardous
areas and sources of ignition. Paragraph 1910.125(e) of the final rule
also specifies the means of controlling ignition sources. OSHA has
therefore not accepted this commenter's suggestion.
Proposed paragraph 1910.124(d)(2) (final paragraph
1910.125(e)(1)(i)), which specified the area that must be free of
ignition sources, elicited several comments (Exs. 4-3, 4-7, 4-11). One
commenter (Ex. 4-3) generally endorsed the proposed provision. Two
commenters, however, recommended that the paragraph be revised. The
first of these commenters (Ex. 4-7) stated that the requirement should
be performance based and recommended the following language: ``Open
flames must be kept out of the vapor area * * * to prevent ignition.''
The second commenter (Ex. 4-11) believed that the proposed paragraph
expanded the requirement in former section 1910.108 because it did not
define hazardous areas by the quantity of flammable vapors present;
this commenter recommended that OSHA instead adopt ``the same distances
as described in NFPA 34-1995.''
OSHA believes that keeping ignition sources (including open flames)
out of areas that are within 20 feet of the vapor area, which is a
requirement taken from paragraphs (e)(1)(i) and (e)(2) of former
section 1910.108, will afford employees more protection than merely
excluding ``open flames'' from the vapor area (as specified in Ex. 4-
7's recommended language). OSHA believes that the revised definition of
``vapor area'' in the final rule, which states that a vapor area is an
``area where the vapor concentration exceeds 25% of the LFL,'' when
used in combination with the definition of an ``adjacent area'' as an
``area within 20 feet * * * of a vapor area,'' will make paragraph
1910.125(e) of the final rule consistent with the requirements of
former paragraph 1910.108(e)(2) and satisfy these commenters' concerns.
Proposed paragraph 1910.124(d)(6) (final paragraphs
1910.125(e)(4)(ii) and (e)(4)(iii)), which delineated the procedure for
disposing of rags and other contaminated material, was found by the
single commenter (Ex. 4-3) to be a ``[g]ood change, [because it]
removes all confusion.'' The language of the final rule is thus
unchanged from that proposed.
Proposed paragraph 1910.124(d)(7) (final paragraph 1910.125(e)(5)),
which prohibited smoking in a vapor area, elicited one comment (Ex. 4-
13). This commenter recommended that the no-smoking signs required by
this paragraph conform to the characteristics for such signs specified
in the ANSI Z535.2-1991 consensus standard.
The proposed no-smoking provision was adopted from paragraph (f)(4)
of former section 1910.108. The Agency also regulates warning signs in
Sec. 1910.145 to ensure that warning signs used in general industry
conform with uniform specifications and are readily understood by
employees. OSHA believes, therefore, that employer familiarity with the
former standard and the provisions of Sec. 1910.145 will enhance their
compliance with final paragraph 1910.125(e)(5). Adopting ANSI Z535.2-
1991 would require employers to comply with new sign requirements,
thereby increasing their regulatory burden. Adopting ANSI Z535.2-1991
would require substantial changes to the former rule and, therefore, is
beyond the scope of this plain-language rulemaking. (OSHA also notes
that ANSI has since issued an updated version of this consensus
standard, ANSI Z535.2-1998. Either version (1991 or 1998) will be
acceptable for the design of no-smoking signs to comply with final
paragraph 1910.125(e)(5).)
Proposed paragraph 1910.124(e)(1)(i) (final paragraph
1910.125(f)(1)), which prescribed fire protection for dip tanks having
a specified volume or surface area, received only one comment (Ex. 4-
4). This commenter stated that section 7-6 of NFPA 34-1995 should be
substituted for this paragraph because the NFPA standard ``covers the
smaller processes and allows a choice between a self-closing cover or a
fire suppression system.'' OSHA based the size limitations specified in
this requirement on paragraphs (c) and (h) of former section 1910.108;
revising this requirement to cover smaller dip tanks would represent a
substantive change to the former rule and is beyond the scope of this
plain-language rulemaking.
Proposed paragraph 1910.125(d)(5) (final paragraph 1910.126(d)(5)),
required that solvent-cleaning and vapor-degreasing tanks ``with a
vapor area larger than 4 feet\2\ (.38m\2\) . . . have cleanout or
sludge doors located near the bottom of each tank.'' One commenter (Ex.
4-1) criticized the proposed language for using the term ``vapor area''
in a manner that was inconsistent with the definition of the term in
proposed paragraph 1910.122(d). After reviewing the proposed paragraph,
OSHA decided to delete it from the final standard because the Agency
determined that it served no valid safety and health purpose (see the
explanation of this action below in paragraph (j) of Part 4).
Proposed paragraph 1910.125(g)(7) (final paragraph 1910.126(g)(6)),
which specified the fences, rails, or guards required in paint-
detearing operations, received only a single comment (Ex. 4-13). This
commenter recommended that such fences, rails, or guards be installed
according to the ANSI A1264.1-1995 consensus standard. The ANSI
consensus standard, which is more detailed than the final rule's
provision,
[[Page 13903]]
would require construction of a complete guardrail system for this
purpose. OSHA believes that it is appropriate to permit a single rail
when doing so will safely isolate employees from detearing operations.
Accordingly, OSHA has not made the suggested change to the final rule.
Part 3
The following discussion addresses general comments on this plain
language rulemaking.
One commenter (Ex. 4-4) recommended that ``OSHA abandon its attempt
to re-write portions of a 25-year-old standard'' to conform to various
parts of NFPA 34-1995 and instead adopt NFPA 34-1995 in its entirety.
This commenter also encouraged OSHA to include references in the final
rule stating that ``any ventilation system designed, installed, and
operated in accordance with NFPA 34 and NFPA 91 meets the requirements
of [this rule] for fire protection purposes,'' and ``that any dipping/
coating system that meets the requirements of NFPA 34 also meets [the
requirements of this rule].'' In a related matter, this commenter and
another commenter (Ex. 4-13) asked why this rulemaking did not comply
with the National Technology Transfer and Advancement Act of 1996
(NTTAA), which mandates that Federal regulatory agencies ``use
technical standards that are developed or adopted by voluntary
consensus standards bodies. . . .''
In response, OSHA notes that the NTTAA's requirements do not apply
where the Agency determines that use of a consensus standard ``is
inconsistent with applicable law or otherwise impractical . . . .'' (15
U.S.C. 272 note.) In the case of this plain-language rewrite, adopting
the recommended language would result in substantive revisions to the
former standards and would therefore be beyond the scope of this
rulemaking. In addition, the recommended NFPA standards use
specification language, which is inconsistent with OSHA's emphasis on
performance-oriented language in this rulemaking.
Part 4
OSHA has made various technical and editorial corrections to the
regulatory text of the final rule.
In this final rule, OSHA has made the following changes to clarify
the rule's meaning, to make the rule easier to follow, and to correct
errors in the proposed rule. Specifically, OSHA has:
(a) Redesignated the section numbers in the final rule as 29 CFR
1910.122 to 29 CFR 1910.126 instead of 29 CFR 1910.121 to 29 CFR
1910.125. This revision is necessary because OSHA has reserved section
1910.121 for a future rule addressing the accreditation of training
programs for workers involved in hazardous-waste operations and
emergency-response activities.
(b) Removed proposed paragraph 1910.122(c)(2) from the final rule.
The proposed paragraph, which was adopted from former paragraph
1910.94(d)(13)(ii), excepted surface-coating operations covered by 29
CFR 1910.107 from the scope of the standard. OSHA removed this
provision from the final standard because the Agency interpreted the
phrase ``excluding open-tank operations'' in former paragraph
1910.94(d)(13)(ii) to mean that the exception applied only when
surface-coating operations do not involve dip tanks. OSHA believes that
it is unnecessary to specify that the final standard, which regulates
dip-tank operations, does not apply to surface-coating operations that
do not involve dip tanks.
(c) Added two definitions to paragraph 1910.123(d) of the final
rule. The first definition, of the term ``adjacent area,'' clarifies
the use of this term in paragraphs 1910.125(e)(1)(i) and (e)(1)(ii) of
the final rule, and is consistent with the definition of ``adjacent
area'' in paragraph (e)(2) of former section 1910.108. In both
definitions, an adjacent area is defined as distinct from, and
excluding, the vapor area.
The second definition, of the pronoun ``you,'' was added because
the final rule uses the ``you'' form of the question-and-answer plain-
language style, as recommended in Federal plain-language guidance. This
definition makes clear that employers are responsible for implementing
the requirements of the final rule, as mandated by the Occupational
Safety and Health Act of 1970 (29 U.S.C. 651 et seq.).
(d) Removed the proposed definition of ``safe distance'' from the
final rule to avoid confusion when the term is used in the context of
spark production (see paragraphs 1910.126(g)(3) and (g)(4)(iii) of the
final rule), as opposed to its use in the context of the removal of an
employee from a fire hazard (see paragraph 1910.125(a)(4) of the final
rule). The meaning of the term now is specified separately in
paragraphs 1910.126(a)(4), (g)(3), and (g)(4)(iii) of the final rule.
(e) Restored the requirement in former paragraph 1910.94(d)(9)(vii)
to limit the water pressure in a water hose used for emergency eye
washing and showering to 25 pounds per square inch (1.62 k/cm\2\) or
less; this limit was inadvertently left out of the proposal. OSHA added
this requirement to paragraph 1910.124(g)(2) of the final rule because
the pressure limitation is necessary to prevent possible eye injury
while using the hose.
(f) Removed from the final rule the first sentence in proposed
paragraph 1910.124(j)(1), which required employers to ``inspect
[dipping and coating] equipment and promptly correct any deficiencies .
. . [.]'' This provision is redundant in large part with the
requirement in proposed paragraph 1910.124(j)(1)(ii) ``[T]o inspect all
dipping and coating equipment . . . periodically.'' The periodic
inspection requirement is specified in paragraph 1910.124(j)(3) of the
final rule. The proposed requirement to ``promptly correct any
deficiencies'' was added to final paragraph 1910.124(j)(3) because
paragraph (f)(3) of former section 1910.108 required employers to
promptly correct any defects found during periodic inspections of dip
tanks.
(g) Moved an exception from the requirements to control ignition
sources was from the note to proposed paragraph 1910.125(a) to
paragraph 1910.125(e)(1)(i) of the final rule. OSHA determined that the
exception in the former rule (paragraph 1910.108(e)(1)(i)) actually
applies to electrostatic paint-detearing operations instead of
hardening and tempering tanks. Accordingly, the exception has been
moved to paragraph 1910.125(e)(1)(i) of the final rule, which specifies
controls for electrical sources of ignition.
(h) Restored, in final rule paragraph 1910.126(a)(5), a provision
inadvertently excluded from proposed paragraph 1910.125(a)(5) that
permitted bottom drains in hardening or tempering tanks to be combined
with the oil-circulating system.
(i) Removed from the final rule the note in proposed paragraph
1910.125(d)(2) because the combustion chamber must be air tight (except
for the flue opening) regardless of the solvent used in vapor
degreasing tanks.
(j) Removed proposed paragraph 1910.125(d)(5) from the final rule.
The proposed paragraph required that solvent-cleaning and vapor-
degreasing tanks that have a surface area larger than 4
feet2 (.38 m2) be equipped with ``cleanout or
sludge doors located near the bottom of the tank.'' OSHA determined
that the purpose of this provision, which was adopted from former
paragraph 1910.94(d)(12)(iv), was to provide employers with a
convenient means of cleaning residue from the bottom of the tanks;
therefore,
[[Page 13904]]
the provision served no valid safety and health purpose.
Part 5
Comparing provisions of the former rules and the final rule.
The following tables show the paragraph designations of the former
rules and the corresponding provisions of the final rule. Table I
covers the requirements from former section 1910.94(d), and Table II
lists the provisions from former section 1910.108. Table III contains
the provisions of final sections 1910.123 through 1910.126 and the
sources for each provision in former sections 1910.94(d) and 1910.108.
Table I
----------------------------------------------------------------------------------------------------------------
Former Section 1910.94(d) Final Sections 1910.123 through 1910.126
----------------------------------------------------------------------------------------------------------------
(d) Open surface tanks. (1) General 1910.123(a) and (b).
(i) Application..
(d)(1)(ii) Exhaust system 1910.124(b)(4).
construction.
(d)(2)(i) to (d)(2)(vii) Covered by standards referenced in 1910.124(b)(4).
Classification of open-surface
tank operations.
(d)(3) Ventilation.............. 1910.124(b)(1) and (b)(2).
(d)(4)(i) to (d)(4)(v) Control Covered by standards referenced in 1910.124(b)(4).
requirements.
(d)(5) Spray cleaning and 1910.126(f).
degreasing.
(d)(6) Control means other than 1910.124(b)(3).
ventilation.
(d)(7)(i) and (d)(7)(ii) System 1910.124(b)(4).
design.
(d)(7)(iii) Protect against 1910.124(b)(6).
exhaust system fire.
(d)(7)(iv) Exhaust system meets 1910.124(b)(4).
consensus standards.
(d)(8) Operation (i) Maintain 1910.124(j)(1) and (j)(2).
airflow..
(d)(8)(ii),(iii) Exhaust 1910.124(c) and (d).
discharge; makeup air.
(d)(9) Personal protection. (i) 1910.124(f).
Training.
(d)(9)(ii) Protective shoes..... Deleted, covered by subpart I of 29 CFR 1910.
(d)(9)(iii) Protective gloves... Deleted, covered by subpart I of 29 CFR 1910.
(d)(9)(iv) Protective garments.. Deleted, covered by subpart I of 29 CFR 1910.
(d)(9)(v) Protective goggles.... Deleted, covered by subpart I of 29 CFR 1910.
(d)(9)(vi) Respirators.......... Deleted, covered by subpart I of 29 CFR 1910.
(d)(9)(vii) Emergency showers... 1910.124(g)(2).
(d)(9)(viii) Physician 1910.124(h)(1), (h)(2), and (h)(4).
authorization, examination.
(d)(9)(ix) Washing facilities... 1910.124(g)(3).
(d)(9)(x) Locker space.......... 1910.124(g)(1).
(d)(9)(xi) First aid............ 1910.124(h)(3).
(d)(10) Special precautions for 1910.126(e).
cyanide.
(d)(11) Inspection, maintenance, Covered by section 1910.22(a).
and installation. (i) Floors.
(d)(11)(ii) Tank cleaning....... 1910.124(i).
(d)(11)(iii) Test tanks before 1910.124(e).
entering.
(d)(11)(iv) and (d)(11)(v) Covered by section 1910.146.
Entering tank.
(d)(11)(vi) Welding operations.. 1910.124(j)(4) and (j)(5).
(d)(12) Vapor degreasing tanks. 1910.126(d)(1).
(i) Vapor control.
(d)(12)(ii) Keep gas vapors away 1910.126(d)(2) and (d)(3).
from heating units.
(d)(12)(iii) Do not create 1910.126(d)(4).
excessive vapors.
(d)(12)(iv) Solvent-cleaning and Deleted; unnecessary.
vapor-degreasing tanks must
have cleanout or sludge doors.
(d)(13) Scope. (i) Coverage..... 1910.123(a), (b), and (c).
(d)(13)(ii) Molten materials 1910.123(c).
operations defined.
(d)(13)(iii) Surface coating Deleted; unnecessary.
operations defined.
----------------------------------------------------------------------------------------------------------------
Table II
----------------------------------------------------------------------------------------------------------------
Former section 1910.108 Final sections 1910.123 through 1910.126
----------------------------------------------------------------------------------------------------------------
(a) Definitions applicable to this 1910.123(d).
section-(1) Dip tank.
(a)(2) Vapor area............... 1910.123(d).
(a)(3) Approved................. 1910.123(d).
(a)(4) Lister................... Deleted; unnecessary
(b) Ventilation-(1) Vapor area 1910.124(b)(1), (b)(3), (b)(4), and (b)(5), and 1910.125(d)(2)
ventilation.
(b)(2) Ventilation combined with 1910.125(e)(3).
drying.
(c) Construction of dip tanks. (1) 1910.124(a) and 125(a).
General.
(c)(2) Overflow pipes. (i) Tank 1910.125(b)(1).
capacity.
(c)(2)(ii) Overflow pipe 1910.125(b)(2)(i).
capacity.
(c)(2)(iii) and (c)(2)(iv) 1910.125(b)(2)(ii) and (b)(2)(iii).
Overflow pipe cleaning and
location.
(c)(3)(i) to (c)(3)(iii) Bottom 1910.125(c).
drains.
(c)(4) Salvage tanks............ Deleted; property protection.
(c)(5) Automatic extinguishing 1910.125(f)(1) and (f)(3).
facilities.
(c)(6) Conveyor systems......... 1910.125(d).
(c)(7) Heating dip tank liquids. 1910.125(g).
(d) Liquids used in dip tanks, 1910.125(e)(2).
storage, and handling.
(e) Electrical and other sources of 1910.125(e)(1).
ignition. (1) Vapor areas. (i) No
open flames, explosion proof
equipment.
(e)(1)(ii) Electrical equipment 1910.125(e)(1)(i).
in vapor areas.
(e)(2) Adjacent areas........... 1910.125(e)(1).
(f) Operations and maintenance. (1) 1910.125(e)(4)(i).
General.
(f)(2) Waste cans............... 1910.125(e)(4)(ii) and (e)(4) (iii).
[[Page 13905]]
(f)(3) Inspection of dip tanks.. 1910.124(j)(1) and (3).
(f)(4) Warning signs............ 1910.125(e)(5).
(g) Extinguishment. (1) 1910.125(f)(2)(i).
Extinguishers.
(g)(2) Automatic water spray 1910.125(f)(2)(ii).
extinguishing systems.
(g)(3) Automatic foam 1910.125(b)(2) and 1910.125(f)(2)(ii).
extinguishing systems.
(g)(4) Automatic carbon dioxide 1910.125(f)(2)(ii).
systems.
(g)(5) Dry chemical 1910.125(f)(2)(ii).
extinguishing systems.
(g)(6) Dip tank covers. (i) 1910.125(f)(3) and (f)(3)(i).
Automatically activated.
(g)(6)(ii) to (g)(6)(iv) 1910.125(f)(3)(ii) and (f)(3)(iii).
Construction and use of covers.
(h) Special dip tank applications. 1910.126(a)(1)(i) and (a)(1)(ii).
(1) Hardening and tempering tanks.
(i) Location.
(h)(1)(ii) Noncombustible hood 1910.126(a)(1)(iii).
and vent.
(h)(1)(iii) Temperature of 1910.126(a)(4).
cooling medium.
(h)(1)(iv) High temperature 1910.126(a)(2) and (a)(3).
limit switch.
(h)(1)(v) Automatic 1910.125(f)(1)(ii) and (f)(2)(ii).
extinguishing facilities.
(h)(1)(vi) No pressurized air... 1910.126(a)(6).
(h)(1)(vii) Bottom drain........ 1910.125(c)(3), and 1910.126(a)(4) and (a)(5).
(h)(2) Flow coat; general. (i) 1910.126 (introductory paragraph).
All preceding standards apply.
(h)(2)(ii) Strong and rigid 1910.126(b)(2).
piping.
(h)(2)(iii) Paint pumped at low 1910.126(b)(1).
pressure.
(h)(2)(iv) Area of dip tank..... Covered by section 1910.123(d) (definition of ``dip tank'').
(h)(3) Electrostatic apparatus.. 1910.126(g).
(h)(4) Roll coating............. 1910.126 (introductory paragraph) and 1910.126(c).
----------------------------------------------------------------------------------------------------------------
Table III
----------------------------------------------------------------------------------------------------------------
Final sections 1910.123 through
1910.126 (final section 1910.122
contains a table of contents for Former sections 1910.94(d) and 1910.108 (or applicable NFPA standards)
final sections 1910.123 through
1910.126)
----------------------------------------------------------------------------------------------------------------
1910.123 Dipping and coating
operations: Coverage and
definitions:
(a) Does this standard apply to
me?
(a)(1) Using a liquid in a 1910.94(d)(1)(i) and (d)(13)(i).
dip tank.
(a)(2) Draining or drying an 1910.94(d)(13)(i).
object.
(b) What operations are covered? 1910.94(d)(13)(i).
(c) What operations are not 1910.94(d)(13)(i) and (d)(13)(ii).
covered? Operations using
molten material.
(d)How are terms used in 1910.108(a).
sections 1910.123 through
1910.126 defined?
``Adjacent area''........... 1910.108(e)(2).
``Approved''................ 1910.108(a)(3).
``Autoignition temperature'' NFPA 325-1994.
``Combustible liquid''...... 1910.1200(c).
``Dip tank''................ 1910.108(a)(1).
``Flammable liquid''........ 1910.1200(c).
``Flashpoint''.............. 1910.1200(c).
``Lower flammable limit NFPA 325-1994.
(LEL)''.
``Vapor area''.............. 1910.108(a)(2).
``You''
1910.124 General requirements for
dipping and coating operations:
(a) What construction 1910.108(c)(1).
requirements apply to dip
tanks?
(b) What ventilation
requirements apply to vapor
areas?
(b)(1) Keep airborne 1910.94(d)(3) and 1910.108(b)(1)
concentrations below 25% of
the LFL.
(b)(2) Meet the levels 1910.94(d)(3).
specified in part 1910,
subpart Z..
(b)(3) Use of tank covers or 1910.94(d)(6).
floating materials.
(b)(4) Mechanical 1910.94(d)(1)(ii), (d)(2), (d)(4), and (d)(7)(i) to (d)(7)(iv); and
ventilation requirements. 1910.108(b)(1).
(b)(5) Airflow requirements 1910.108(b)(1).
for mechanical ventilation.
(b)(6) Requirements for an 1910.94(d)(7)(iii).
independent exhaust system.
(c) What requirements must I
follow to recirculate exhaust
air into the workplace?
(c)(1) Meet the requirements 1910.94(d)(3) and (d)(8)(ii), and NFPA 34-1995.
of paragraph (b) of this
section.
(c)(2) Other requirements NFPA 34-1995.
for recirculated exhaust
air.
(c)(3) Requirements for an NFPA 34-1995.
alarm.
(d) What must I do when I use an
exhaust hood?
(d)(1) Volume requirements.. 1910.94(d)(8)(iii).
(d)(2) Prevent damage to 1910.94(d)(8)(iii).
exhaust hoods.
(e) What requirements must I 1910.94(d)(11)(iii) to (d)(11)(v).
follow when an employee enters
a dip tank?.
(f) What first-aid procedures 1910.94(d)(9)(i).
must my employees know?
(g) What hygiene facilities must
I provide?
(g)(1) Storage space........ 1910.94(d)(9)(x).
(g)(2) Emergency shower and 1910.94(d)(9)(vii).
eye-wash station.
(g)(3) Washing facilities... 1910.94(d)(9)(ix).
(h) What treatment and first aid
must I provide?
(h)(1) For sores, burns, or 1910.94(d)(9)(viii).
other skin lesions.
[[Page 13906]]
(h)(2) For small skin 1910.94(d)(9)(viii).
abrasions, cuts, rashes, or
open sores.
(h)(3) First-aid supplies... 1910.94(d)(9)(xi).
(h)(4) Periodic examinations 1910.94(d)(9)(viii).
for employees exposed to
chromic acid.
(i) What must I do before an
employee cleans a dip tank?
(i)(1) Drain the dip tank 1910.94(d)(11)(ii).
and open cleanout doors.
(i)(2) Ventilate vapor 1910.94(d)(11)(ii).
pockets.
(j) What must I do to inspect
and maintain my dipping or
coating operation?
(j)(1) Inspect ventilation 1910.94(d)(8)(i) and 1910.108(f)(3).
hoods and ductwork.
(j)(2) Ensure an adequate 1910.94(d)(8)(i).
airflow.
(j)(3) Periodically inspect 1910.108(f)(3).
dipping and coating
equipment.
(j)(4) Protect employees 1910.94(d)(11)(vi).
from toxic exposures during
welding, burning, or open-
flame work.
(j)(5) Remove solvents and 1910.94(d)(11)(vi).
vapors before welding,
burning, or open-flame work.
1910.125 Additional requirements for
dipping and coating operations that
use flammable or combustible
liquids:
(a) What type of 1910.108(c)(1).
construction material must
be used in making my dip
tank?
(b) When must I provide overflow
piping?
(b)(1) When overflow pipes 1910.108(c)(2)(i).
are required.
(b)(2) Overflow pipe 1910.108(c)(2)(ii), (c)(2)(iii), and (c)(2)(iv).
requirements.
(c) When must I provide a bottom
drain?
(c)(1) For dip tanks over 1910.108(c)(3)(i); NFPA 34.
500 gallons (1893 L), with
specified exceptions.
(c)(2) Bottom drain 1910.108(c)(3)(ii); NFPA 34.
requirements.
(c)(3) Manual and automatic 1910.108(c)(3)(i).
operation.
(c)(4) Use of automatic 1910.108(c)(3)(i).
pumps.
(d) When must my conveyor
systems shut down
automatically?
(d)(1) When there is a fire. 1910.108(c)(6).
(d)(2) When the ventilation 1910.108(b)(1) and (c)(6).
rate drops.
(e) What ignition and fuel
sources must be controlled?
(e)(1) Ignition sources in 1910.108(e)(1) and (e)(2).
the vapor area and any
adjacent area.
(e)(2) Electrical bonding 1910.108(d).
and grounding of portable
containers.
(e)(3) Ignition from a 1910.108(b)(2).
heating system.
(e)(4) Ignition from 1910.108(f)(1) and (f)(2).
combustible debris and
stock, rags and other
contaminated material, and
the content of waste cans.
(e)(5) Prohibit smoking in a 1910.108(f)(4).
vapor area.
(f) What fire protection must I
provide?
(f)(1) Tanks covered by 1910.108(c)(5) and (h)(1)(v).
these requirements.
(f)(2) Types of fire- 1910.108(c)(5) and (g)(1) to (g)(5).
extinguishing equipment
required (manual and
automatic).
(f)(3) Requirements for fire- 1910.108(g)(6).
extinguishing covers.
(g) To what temperature may I
heat a liquid in a dip tank?
(g)(1) Below the liquid's NFPA 34-1995.
boiling point.
(g)(2) At least 100 deg. F NFPA 34-1995.
(37.8 deg. C) below the
liquid's autoignition
temperature.
1910.126 Additional requirements for
special dipping and coating
operations:
(a) What additional requirements
apply to hardening or tempering
tanks?
(a)(1) Location, flooring, 1910.108(h)(1)(i) and (h)(1)(ii).
and venting requirements.
(a)(2) Alarm requirements... 1910.108(h)(1)(iv).
(a)(3) Limit switch to shut 1910.108(h)(1)(iv).
down the conveyor.
(a)(4) Circulating cooling 1910.108(h)(1)(iii).
system.
(a)(5) Bottom drains 1910.108(h)(1)(vii).
combined with oil-
circulating system.
(a)(6) Prohibit use of 1910.108(h)(1)(vi).
pressurized air to fill or
agitate.
(b) What additional requirements
apply to flow coating?
(b)(1) Use of direct low- 1910.108(h)(2)(iii).
pressure pumping systems or
gravity tanks to supply
paint.
(b)(2) Piping requirements.. 1910.108(h)(2)(ii).
(c) What additional requirements
apply to roll coating, roll
spreading, or roll
impregnating?
(c)(1) Requirements for 1910.108(h)(4)(ii).
bonding and grounding
metallic parts and
installing static
collectors.
(c)(2) Requirement to 1910.108(h)(4)(ii).
maintain a conductive
atmosphere.
(d) What additional requirements
apply to vapor degreasing
tanks?
(d)(1) Maintain the vapor 1910.94(d)(12)(i).
level below the top of the
tank.
(d)(2) Prevent solvent fumes 1910.94(d)(12)(ii).
from entering the air-fuel
mixture.
(d)(3) Requirements for 1910.94(d)(12)(ii).
flues and draft diverters.
(d)(4) Temperature limit for 1910.94(d)(12)(iii).
the heating element.
(e) What additional requirements 1910.94(d)(10).
apply to cyanide tanks?.
(f) What additional requirements
apply to spray cleaning tanks
and degreasing tanks?
(f)(1) Enclose spray 1910.94(d)(5).
operations.
(f)(2) Mechanical 1910.94(d)(5).
ventilation required.
(g) What additional requirements
apply to electrostatic paint
detearing?
(g)(1) Approved 1910.108(h)(3)(ii), (h)(3)(iv), and (h)(3)(xi).
electrostatic equipment
including electrodes.
[[Page 13907]]
(g)(2) Use of conveyors to 1910.108(h)(3)(vii).
support goods being paint-
deteared.
(g)(3) No manual handling of 1910.108(h)(3)(viii).
goods being paint-deteared.
(g)(4) Requirement to 1910.108(h)(3)(vi).
maintain the safe distance.
(g)(5) Automatic controls 1910.108(h)(3)(ix).
required.
(g)(6) Fences, rails, or 1910.108(h)(3)(x).
guards required.
(g)(7) Requirements for fire 1910.108(h)(3)(xiii).
protection.
(g)(8) Collecting paint 1910.108(h)(3)(xiv).
deposits.
----------------------------------------------------------------------------------------------------------------
IV. Legal Considerations
Because the final rule is only a plain language redrafting of two
former Agency rules, it is not necessary to determine significant risk
or the extent to which the final rule reduces that risk. In Industrial
Union Department, AFL-CIO v. American Petroleum Institute, 448 U.S. 607
(1980), the Supreme Court ruled that, before OSHA can increase the
protection afforded by a standard, the Agency must find that the hazard
being regulated poses a significant risk to employees and that a new,
more protective, standard is ``reasonably necessary and appropriate''
to reduce that risk. The final rule that replaces the Agency's former
rules regulating dipping and coating operations does not directly
increase or decrease the protection afforded to employees, nor does it
increase employers' compliance burdens. Therefore, no finding of
significant risk is necessary.
The Agency believes, however, that improved employee protection is
likely to result from implementation of the final rule because
employers and employees who clearly understand what a rule requires are
more likely to comply with that rule. In addition, because the final
rule is more performance-oriented than the former rules regulating
dipping and coating operations, employers will find it easier to comply
with the final rule.
V. Economic Analysis
The final rule is not a significant rule under Executive Order
12866 or a major rule under the Unfunded Mandates Reform Act or Section
801 of the Small Business Regulatory Enforcement Fairness Act (SBREFA)
because it imposes no additional costs on any private or public sector
entity and does not meet any of the other criteria for a significant or
major rule specified by the Executive Order or the other statutes.
Because the final rule does not impose any additional costs on
employers whose operations involve dipping and coating, no economic or
regulatory flexibility analysis of the final rule is required.
VI. Regulatory Flexibility Certification
In accordance with the Regulatory Flexibility Act, 5 U.S.C. 601 et
seq (as amended), OSHA has examined the regulatory requirements of the
final rule to determine if it will have a significant economic impact
on a substantial number of small entities. As indicated in section V of
this preamble, the final rule does not increase employers' compliance
costs, and may even reduce the regulatory burden on all affected
employers, both large and small. Accordingly, the Agency certifies that
the final rule does not have a significant economic impact on a
substantial number of small entities.
VII. Environmental Impact Assessment
OSHA has reviewed the final rule in accordance with the
requirements of the National Environmental Policy Act (NEPA) of 1969
(42 U.S.C. 4321 3et seq.), the regulations of the Council on
Environmental Quality (40 U.S.C. part 1500), and the Department of
Labor's NEPA procedures (29 CFR part 11). As noted earlier in this
preamble, the final rule imposes the same requirements on employers as
the standards it replaces; consequently, the final rule has no
additional impact on the environment, including no impact on the
release of materials that contaminate natural resources or the
environment, beyond the impact imposed by OSHA's former standards
regulating dipping and coating operations.
VIII. Paperwork Reduction Act
This final rule contains a collection of information requirement.
Under 1910.126(g)(4), employers are required to determine how far away
employees should remain when electrostatic paint detearing equipment is
being used. This distance is called the ``safe distance.'' The employer
must conspicuously display this ``safe distance'' on a sign located
near the equipment. OSHA does not believe that the provision imposes a
burden on the employer to collect or display the information because
OSHA believes the information has already been determined and displayed
on the few, about 12, pieces of equipment in use today. Newer
technology appears to have eliminated the need to manufacture or use
electrostatic paint detearing equipment. OSHA solicited public comments
on this information collection requirement. There were no comments
submitted in response to the collection of information associated with
this provision.
In accordance with the Paperwork Reduction Act of 1995 (44 U.S.C.
3501-3520), OSHA requested OMB approval of the collection of
information requirement described above. On June 1, 1998, the Office of
Management and Budget (OMB) granted approval of the information
requirement under OMB Control Number 1218-0237. The approval expires on
June 30, 2001.
Under 5 CFR 1320.5(b), an Agency may not conduct or sponsor, and a
person is not required to respond to, a collection of information
unless the collection displays a valid control number.
IX. Unfunded Mandates
OSHA has reviewed the final rule in accordance with the Unfunded
Mandates Reform Act of 1995, 2 U.S.C. 1501 et seq., and Executive Order
12875. As discussed above in section IV of this preamble (``Legal
Considerations''), OSHA has determined that the final rule imposes no
new regulatory burdens on any employer, either public or private. The
scope and content of the final rule remain the same as those of the
former standards regulating dipping and coating operations and have not
been expanded to include additional employers. Consequently, compliance
with the final rule requires no additional expenditures by either
public or private employers. In sum, the final rule does not mandate
that State, local, and tribal governments adopt new, unfunded
regulatory obligations.
X. Federalism
The final rule which revises the former standards regulating
dipping and coating operations has been reviewed for Federalism issues,
and the Agency
[[Page 13908]]
certifies that the final rule has been assessed in accordance with the
principles, criteria, and requirements set forth in Sections 2 through
5 of Executive Order 12612.
Executive Order 12612 requires that Federal agencies, to the extent
possible, refrain from limiting State policy options, consult with
States before taking actions that restrict State policy options, and
take such actions only when clear constitutional authority exists and
the problem is of national scope. The Executive Order provides for
preemption of State law only when Congress has expressed an intent that
a Federal agency do so. Any such preemption must be limited to the
extent possible.
With respect to States that do not have occupational safety and
health plans approved by OSHA under Section 18 of the Occupational
Safety and Health Act of 1970 (the ``Act'') (29 U.S.C. 667), OSHA finds
that the final rule conforms to the preemption provisions of the Act.
Under these provisions, OSHA is authorized to preempt State
promulgation and enforcement of requirements dealing with occupational
safety and health issues covered by OSHA standards unless the State has
an OSHA-approved State occupational safety and health plan. (See Gade
v. National Solid Wastes Management Association, 112 S.Ct. 2374
(1992).) States without such programs are, by 29 U.S.C. 667, prohibited
from issuing citations for violations of requirements covered by OSHA
standards. The final rule does not expand this limitation.
Regarding States that have OSHA-approved occupational safety and
health plans (``State-plan states''), OSHA finds that the final rule
complies with Executive Order 12612 because the final rule addresses a
problem that is national in scope, and Section 18(c)(2) of the Act (29
U.S.C. 667(c)(2)) requires State-plan States to adopt OSHA's final
rule, or develop an alternative rule that is at least as effective as
OSHA's final rule. Having already adopted OSHA's former standards
regulating dipping and coating operations (or having developed
alternative standards acceptable to OSHA), State-plan States are not
obligated to adopt the final rule; they may, however, choose to adopt
the final rule, and OSHA encourages them to do so.
XI. State Plan States
OSHA encourages the 25 States and Territories with their own OSHA-
approved occupational safety and health plans to revise their standards
regulating dipping and coating operations according to the final rule
that resulted from this rulemaking. These States are: Alaska, Arizona,
California, Connecticut (State and local government employees only),
Hawaii, Indiana, Iowa, Kentucky, Maryland, Michigan, Minnesota, Nevada,
New Mexico, New York (State and local government employees only), North
Carolina, Oregon, Puerto Rico, South Carolina, Tennessee, Utah,
Vermont, Virginia, Virgin Islands, Washington, and Wyoming.
XII. List of Subjects in 29 CFR Part 1910
Coating; Combustible liquid; Dipping; Dip tanks; Fire protection;
Flammable liquid; Incorporation by reference; Occupational safety and
health; Ventilation.
XIII. Authority
This document was prepared under the direction of Charles N.
Jeffress, Assistant Secretary of Labor for Occupational Safety and
Health, U.S. Department of Labor, 200 Constitution Avenue, N.W.,
Washington, DC 20210. The final rule is issued under the authority of
Sections 4, 6, and 8 of the Occupational Safety and Health Act of 1970
(29 U.S.C. 653, 655, 657); Secretary of Labor's Order No 6-96 (62 FR
111); and 29 CFR part 1911.
Signed at Washington, D.C., this 15th day of March, 1999.
Charles N. Jeffress,
Assistant Secretary of Labor.
OSHA amends 29 CFR part 1910 as follows:
PART 1910--OCCUPATIONAL SAFETY AND HEALTH STANDARDS
Subpart A--General
1. The Authority citation for subpart A of part 1910 is revised to
read as follows:
Authority: Sections 4, 6, and 8 of the Occupational Safety and
Health Act of 1970 (29 U.S.C. 653, 655, 657); Secretary of Labor's
Order Nos. 12-71 (36 FR 8754), 8-76 (41 FR 25059), 9-83 (48 FR
35736), 1-90 (55 FR 9033), or 6-96 (62 FR 111), as applicable.
Sections 1910.6, 1910.7, and 1910.8 also issued under 29 CFR part
1911.
Sec. 1910.6 [Amended]
1. Paragraph (b)(1) of Sec. 1910.6 is revised to read as follows:
Sec. 1910.6 Incorporation by reference.
* * * * *
(b) * * *
(1) ``Industrial Ventilation: A Manual of Recommended Practice''
(22nd ed., 1995), incorporation by reference (IBR) approved for
Sec. 1910.124(b)(4)(iii).
* * * * *
2. Paragraph (e)(50) of Sec. 1910.6 is revised to read as follows:
* * * * *
(e) * * *
(50) ANSI Z9.1-71 Practices for Ventilation and Operation of Open-
Surface Tanks, IBR approved for Sec. 1910.124(b)(4)(iv).
* * * * *
3. Paragraphs (e)(51) through (e)(70) of Sec. 1910.6 are
redesignated as paragraphs (e)(53) through (e)(72), respectively, and
new paragraphs (e)(51) and (e)(52) are added to read as follows:
* * * * *
(e) * * *
(51) ANSI Z9.2-60 Fundamentals Governing the Design and Operation
of Local Exhaust Systems, IBR approved for Secs. 1910.94(a)(4)(i)
introductory text, (a)(6) introductory text, (b)(3)(ix), (b)(4)(i) and
(ii), (c)(3)(i) introductory text, (c)(5)(iii)(b), and (c)(7)(iv)(a);
1910.261(a)(3)(xx), (g)(1)(i) and (iii), and (h)(2)(ii).
(52) ANSI Z9.2-79 Fundamentals Governing the Design and Operation
of Local Exhaust Systems, IBR approved for Sec. 1910.124(b)(4)(i).
* * * * *
4. Paragraph (q) introductory text of Sec. 1910.6 is revised to
read as follows:
* * * * *
(q) The following material is available for purchase from the
National Fire Protection Association (NFPA), 11 Tracy Drive, Avon, MA
02322:
5. Paragraph (q)(4) of Sec. 1910.6 is revised to read as follows:
* * * * *
(q) * * *
(4) NFPA 34-1966 Standard for Dip Tanks Containing Flammable or
Combustible Liquids, IBR approved for Sec. 1910.124(b)(4)(iv).
* * * * *
6. Paragraphs (q)(5) through (q)(32) of Sec. 1910.6 are
redesignated as paragraphs (q)(6) through (q)(33), respectively, and a
new paragraph (q)(5) is added to read as follows:
* * * * *
(q) * * *
(5) NFPA 34-1995 Standard for Dip Tanks Containing Flammable or
Combustible Liquids, IBR approved for Sec. 1910.124(b)(4)(ii).
* * * * *
Subpart G--Occupational Health and Environmental Control
1. The Authority citation for subpart G of part 1910 is revised to
read as follows:
[[Page 13909]]
Authority: Sections 4, 6, and 8 of the Occupational Safety and
Health Act of 1970 (29 U.S.C. 653, 655, 657); Secretary of Labor's
Orders Nos. 12-71 (36 FR 8754), 8-76 (41 FR 25059), 9-83 (48 FR
35736), 1-90 (55 FR 9033), or 6-96 (62 FR 111), as applicable; and
29 CFR part 1911.
Sec. 1910.94 [Amended]
2. Paragraph (d) of Sec. 1910.94 is removed.
Subpart H--Hazardous Materials
1. The Authority citation for subpart H of 29 CFR part 1910 is
revised to read as follows:
Authority: Sections 4, 6, and 8 of the Occupational Safety and
Health Act of 1970 (29 U.S.C. 653, 655, 657); Secretary of Labor's
Orders Nos. 12-71 (36 FR 8754), 8-76 (41 FR 25059), 9-83 (48 FR
35736), 1-90 (55 FR 9033), or 6-96 (62 FR 111), as applicable; and
29 CFR part 11.
Sections 1910.103, 1910.106 through 1910.111, and 1910.119,
1910.120, and 1910.122 through 1910.126 also issued under 29 CFR part
1911.
Section 1910.119 also issued under Section 304, Clean Air Act
Amendments of 1990 (Pub.L. 101-549), reprinted at 29 U.S.C. 655 Note.
Section 1910.120 also issued under Section 126, Superfund
Amendments and Reauthorization Act of 1986 as amended (29 U.S.C. 655
Note), and 5 U.S.C. 553.
Sec. 1910.108 [Reserved]
2. Section 1910.108 is removed and reserved.
Sec. 1910.121 [Reserved]
3. Section 1910.121 is added and reserved.
4. New Secs. 1910.122 through 1910.126 are added to read as
follows:
DIPPING AND COATING OPERATIONS
Sec. 1910.122 Table of contents.
This section lists the paragraph headings contained in
Secs. 1910.123 through 1910.126.
Sec. 1910.123 Dipping and coating operations: Coverage and
definitions.
(a) Does this rule apply to me?
(b) What operations are covered?
(c) What operations are not covered?
(d) How are terms used in Secs. 1910.123 through 1910.126 defined?
Sec. 1910.124 General requirements for dipping and coating operations.
(a) What construction requirements apply to dip tanks?
(b) What ventilation requirements apply to vapor areas?
(c) What requirements must I follow to recirculate exhaust air into
the workplace?
(d) What must I do when I use an exhaust hood?
(e) What requirements must I follow when an employee enters a dip
tank?
(f) What first-aid procedures must my employees know?
(g) What hygiene facilities must I provide?
(h) What treatment and first aid must I provide?
(i) What must I do before an employee cleans a dip tank?
(j) What must I do to inspect and maintain my dipping or coating
operation?
Sec. 1910.125 Additional requirements for dipping and coating
operations that use flammable or combustible liquids.
(a) What type of construction material must be used in making my dip
tank?
(b) When must I provide overflow piping?
(c) When must I provide a bottom drain?
(d) When must my conveyer system shut down automatically?
(e) What ignition and fuel sources must be controlled?
(f) What fire protection must I provide?
(g) To what temperature may I heat a liquid in a dip tank?
Sec. 1910.126 Additional requirements for special dipping and coating
applications.
(a) What additional requirements apply to hardening or tempering
tanks?
(b) What additional requirements apply to flow coating?
(c) What additional requirements apply to roll coating, roll
spreading, or roll impregnating?
(d) What additional requirements apply to vapor degreasing tanks?
(e) What additional requirements apply to cyanide tanks?
(f) What additional requirements apply to spray cleaning tanks and
spray degreasing tanks?
(g) What additional requirements apply to electrostatic paint
detearing?
Sec. 1910.123 Dipping and coating operations: Coverage and
definitions.
(a) Does this rule apply to me? (1) This rule (Secs. 1910.123
through 1910.126) applies when you use a dip tank containing a liquid
other than water. It applies when you use the liquid in the tank or its
vapor to:
(i) Clean an object;
(ii) Coat an object;
(iii) Alter the surface of an object; or
(iv) Change the character of an object.
(2) This rule also applies to the draining or drying of an object
you have dipped or coated.
(b) What operations are covered? Examples of covered operations are
paint dipping, electroplating, pickling, quenching, tanning,
degreasing, stripping, cleaning, roll coating, flow coating, and
curtain coating.
(c) What operations are not covered? You are not covered by this
rule if your dip-tank operation only uses a molten material (a molten
metal, alloy, or salt, for example).
(d) How are terms used in Secs. 1910.123 through 1910.126 defined?
Adjacent area means any area within 20 feet (6.1 m) of a vapor area
that is not separated from the vapor area by tight partitions.
Approved means that the equipment so designated is listed or
approved by a nationally recognized testing laboratory, as defined by
Sec. 1910.7.
Autoignition temperature means the minimum temperature required to
cause self-sustained combustion, independent of any other source of
heat.
Combustible liquid means a liquid having a flash point of 100 deg.
F (37.8 deg. C) or above.
Dip tank means a container holding a liquid other than water and
that is used for dipping or coating. An object may be immersed (or
partially immersed) in a dip tank or it may be suspended in a vapor
coming from the tank.
Flammable liquid means a liquid having a flashpoint below 100 deg.
F (37.8 deg. C).
Flashpoint means the minimum temperature at which a liquid gives
off a vapor in sufficient concentration to ignite if tested in
accordance with the definition of ``flashpoint'' in Sec. 1910.1200(c).
Lower flammable limit (LFL) means the lowest concentration of a
material that will propagate a flame. The LFL is usually expressed as a
percent by volume of the material in air (or other oxidant).
Vapor area means any space containing a dip tank, including its
drain boards, associated drying or conveying equipment, and any
surrounding area where the vapor concentration exceeds 25% of the LFL
of the liquid in the tank.
You means the employer, as defined by the Occupational Safety and
Health Act of 1970 (29 U.S.C. 651 et seq.).
Sec. 1910.124 General requirements for dipping and coating operations.
(a) What construction requirements apply to dip tanks? Any
container that you use as a dip tank must be strong enough to withstand
any expected load.
(b) What ventilation requirements apply to vapor areas? (1) The
ventilation that you provide to a vapor area must keep the airborne
concentration of any substance below 25% of its LFL.
(2) When a liquid in a dip tank creates an exposure hazard covered
by a standard listed in subpart Z of this part, you must control worker
exposure as required by that standard.
(3) You may use a tank cover or material that floats on the surface
of the liquid in a dip tank to replace or supplement ventilation. The
method or combination of methods you choose must maintain the airborne
[[Page 13910]]
concentration of the hazardous material and the worker's exposure
within the limits specified in paragraphs (b)(1) and (b)(2) of this
section.
(4) When you use mechanical ventilation, it must conform to the
following standards that are incorporated by reference as specified in
Sec. 1910.6:
(i) ANSI Z9.2-1979, Fundamentals Governing the Design and Operation
of Local Exhaust Systems;
(ii) NFPA 34-1995, Standard for Dip Tanks Containing Flammable or
Combustible Liquids;
(iii) ACGIH's ``Industrial Ventilation: A Manual of Recommended
Practice'' (22nd ed., 1995); or
(iv) ANSI Z9.1-1971, Practices for Ventilation and Operation of
Open-Surface Tanks, and NFPA 34-1966, Standard for Dip Tanks Containing
Flammable or Combustible Liquids.
(5) When you use mechanical ventilation, it must draw the flow of
air into a hood or exhaust duct.
(6) When you use mechanical ventilation, each dip tank must have an
independent exhaust system unless the combination of substances being
removed will not cause a:
(i) Fire;
(ii) Explosion; or
(iii) Chemical reaction.
(c) What requirements must I follow to recirculate exhaust air into
the workplace? (1) You may not recirculate exhaust air when any
substance in that air poses a health hazard to employees or exceeds 25%
of its LFL.
(2) You must ensure that any exhaust air recirculated from a
dipping or coating operation using flammable or combustible liquids is:
(i) Free of any solid particulate that poses a health or safety
hazard for employees; and
(ii) Monitored by approved equipment.
(3) You must have a system that sounds an alarm and automatically
shuts down the operation when the vapor concentration for any substance
in the exhaust airstream exceeds 25% of its LFL.
(d) What must I do when I use an exhaust hood? You must:
(1) Provide each room having exhaust hoods with a volume of outside
air that is at least 90 percent of the volume of the exhaust air; and
(2) Ensure that the outside air supply does not damage exhaust
hoods.
(e) What requirements must I follow when an employee enters a dip
tank? When an employee enters a dip tank, you must meet the entry
requirements of Sec. 1910.146, OSHA's standard for Permit-Required
Confined Spaces, as applicable.
(f) What first-aid procedures must my employees know? Your
employees must know the first-aid procedures that are appropriate to
the dipping or coating hazards to which they are exposed.
(g) What hygiene facilities must I provide? When your employees
work with liquids that may burn, irritate, or otherwise harm their
skin, you must provide:
(1) Locker space or other storage space to prevent contamination of
the employee's street clothes;
(2) An emergency shower and eye-wash station close to the dipping
or coating operation. In place of this equipment, you may use a water
hose that is at least 4 feet (1.22 m) long and at least \3/4\ of an
inch (18 mm) thick with a quick-opening valve and carrying a pressure
of 25 pounds per square inch (1.62 k/cm2) or less; and
(3) At least one basin with a hot-water faucet for every 10
employees who work with such liquids. (See paragraph (d) of
Sec. 1910.141.)
(h) What treatment and first aid must I provide? When your
employees work with liquids that may burn, irritate, or otherwise harm
their skin, you must provide:
(1) A physician's approval before an employee with a sore, burn, or
other skin lesion that requires medical treatment works in a vapor
area;
(2) Treatment by a properly designated person of any small skin
abrasion, cut, rash, or open sore;
(3) Appropriate first-aid supplies that are located near the
dipping or coating operation; and
(4) For employees who work with chromic acid, periodic examinations
of their exposed body parts, especially their nostrils.
(i) What must I do before an employee cleans a dip tank? Before
permitting an employee to clean the interior of a dip tank, you must:
(1) Drain the contents of the tank and open the cleanout doors; and
(2) Ventilate and clear any pockets where hazardous vapors may have
accumulated.
(j) What must I do to inspect and maintain my dipping or coating
operation? You must:
(1) Inspect the hoods and ductwork of the ventilation system for
corrosion or damage:
(i) At least quarterly during operation; and
(ii) Prior to operation after a prolonged shutdown.
(2) Ensure that the airflow is adequate:
(i) At least quarterly during operation; and (
ii) Prior to operation after a prolonged shutdown.
(3) Periodically inspect all dipping and coating equipment,
including covers, drains, overflow piping, and electrical and fire-
extinguishing systems, and promptly correct any deficiencies;
(4) Provide mechanical ventilation or respirators (selected and
used as specified in Sec. 1910.134, OSHA's Respiratory Protection
standard) to protect employees in the vapor area from exposure to toxic
substances released during welding, burning, or open-flame work; and
(5) Have dip tanks thoroughly cleaned of solvents and vapors before
permitting welding, burning, or open-flame work on them.
Sec. 1910.125 Additional requirements for dipping and coating
operations that use flammable or combustible liquids.
If you use flammable or combustible liquids, you must comply with
the requirements of this section as well as the requirements of
sections 1910.123, 1910.124, and 1910.126, as applicable.
----------------------------------------------------------------------------------------------------------------
You must comply with this section
if: And:
----------------------------------------------------------------------------------------------------------------
The flashpoint of the The liquid is heated as part of the operation; or
flammable or combustible liquid is
200 deg. F (93.3 deg. C) or above.
A heated object is placed in the liquid.
----------------------------------------------------------------------------------------------------------------
(a) What type of construction material must be used in making my
dip tank? Your dip tank must be made of noncombustible material.
(b) When must I provide overflow piping? (1) You must provide
properly trapped overflow piping that discharges to a safe location for
any dip tank having:
(i) A capacity greater than 150 gallons (568 L); or
(ii) A liquid surface area greater than 10 feet \2\ (0.95
m2).
(2) You must also ensure that:
[[Page 13911]]
(i) Any overflow piping is at least 3 inches (7.6 cm) in diameter
and has sufficient capacity to prevent the dip tank from overflowing;
(ii) Piping connections on drains and overflow pipes allow ready
access to the interior of the pipe for inspection and cleaning; and
(iii) The bottom of the overflow connection is at least 6 inches
(15.2 cm) below the top of the dip tank.
(c) When must I provide a bottom drain? (1) You must provide a
bottom drain for dip tanks that contain more than 500 gallons (1893 L)
of liquid, unless:
(i) The dip tank is equipped with an automatic closing cover
meeting the requirements of paragraph (f)(3) of this section; or
(ii) The viscosity of the liquid at normal atmospheric temperature
does not allow the liquid to flow or be pumped easily.
(2) You must ensure that the bottom drain required by this section:
(i) Will empty the dip tank during a fire;
(ii) Is properly trapped;
(iii) Has pipes that permit the dip tank's contents to be removed
within five minutes after a fire begins; and
(iv) Discharges to a safe location.
(3) Any bottom drain you provide must be capable of manual and
automatic operation, and manual operation must be from a safe and
accessible location.
(4) You must ensure that automatic pumps are used when gravity flow
from the bottom drain is impractical.
(d) When must my conveyor system shut down automatically? If your
conveyor system is used with a dip tank, the system must shut down
automatically:
(1) If there is a fire; or
(2) If the ventilation rate drops below what is required by
paragraph (b) of Sec. 1910.124.
(e) What ignition and fuel sources must be controlled? (1) In each
vapor area and any adjacent area, you must ensure that:
(i) All electrical wiring and equipment conform to the applicable
hazardous (classified)-area requirements of subpart S of this part
(except as specifically permitted in paragraph (g) of Sec. 1910.126);
and
(ii) There are no flames, spark-producing devices, or other
surfaces that are hot enough to ignite vapors.
(2) You must ensure that any portable container used to add liquid
to the tank is electrically bonded to the dip tank and positively
grounded to prevent static electrical sparks or arcs.
(3) You must ensure that a heating system that is used in a drying
operation and could cause ignition:
(i) Is installed in accordance with NFPA 86A-1969, Standard for
Ovens and Furnaces (which is incorporated by reference in Sec. 1910.6
of this part);
(ii) Has adequate mechanical ventilation that operates before and
during the drying operation; and
(iii) Shuts down automatically if any ventilating fan fails to
maintain adequate ventilation.
(4) You also must ensure that:
(i) All vapor areas are free of combustible debris and as free as
practicable of combustible stock;
(ii) Rags and other material contaminated with liquids from dipping
or coating operations are placed in approved waste cans immediately
after use; and
(iii) Waste can contents are properly disposed of at the end of
each shift.
(5) You must prohibit smoking in a vapor area and must post a
readily visible ``No Smoking'' sign near each dip tank.
(f) What fire protection must I provide? (1) You must provide the
fire protection required by this paragraph (f) for:
(i) Any dip tank having a capacity of at least 150 gallons (568 L)
or a liquid surface area of at least 4 feet 2 (0.38 m
1); and
(ii) Any hardening or tempering tank having a capacity of at least
500 gallons (1893 L) or a liquid surface area of at least 25 feet
2 (2.37 m 2).
(2) For every vapor area, you must provide:
(i) Manual fire extinguishers that are suitable for flammable and
combustible liquid fires and that conform to the requirements of
Sec. 1910.157; and
(ii) An automatic fire-extinguishing system that conforms to the
requirements of subpart L of this part.
(3) You may substitute a cover that is closed by an approved
automatic device for the automatic fire-extinguishing system if the
cover:
(i) Can also be activated manually;
(ii) Is noncombustible or tin-clad, with the enclosing metal
applied with locked joints; and
(iii) Is kept closed when the dip tank is not in use.
(g) To what temperature may I heat a liquid in a dip tank? You must
maintain the temperature of the liquid in a dip tank:
(1) Below the liquid's boiling point; and
(2) At least 100 deg. F (37.8 deg. C) below the liquid's
autoignition temperature.
Sec. 1910.126 Additional requirements for special dipping and coating
operations.
In addition to the requirements in Secs. 1910.123 through 1910.125,
you must comply with any requirement in this section that applies to
your operation.
(a) What additional requirements apply to hardening or tempering
tanks?
(1) You must ensure that hardening or tempering tanks:
(i) Are located as far as practicable from furnaces;
(ii) Are on noncombustible flooring; and
(iii) Have noncombustible hoods and vents (or equivalent devices)
for venting to the outside. For this purpose, vent ducts must be
treated as flues and kept away from combustible materials, particularly
roofs.
(2) You must equip each tank with an alarm that will sound if the
temperature of the liquid comes within 50 deg. F (10 deg. C) of its
flashpoint (the alarm set point).
(3) When practicable, you must also provide each tank with a limit
switch to shut down the conveyor supplying work to the tank.
(4) If the temperature of the liquid can exceed the alarm set
point, you must equip the tank with a circulating cooling system.
(5) If the tank has a bottom drain, the bottom drain may be
combined with the oil-circulating system.
(6) You must not use air under pressure when you fill the dip tank
or agitate the liquid in the dip tank.
(b) What additional requirements apply to flow coating? (1) You
must use a direct low-pressure pumping system or a 10-gallon (38 L) or
smaller gravity tank to supply the paint for flow coating. In case of
fire, an approved heat-actuated device must shut down the pumping
system.
(2) You must ensure that the piping is substantial and rigidly
supported.
(c) What additional requirements apply to roll coating, roll
spreading, or roll impregnating?
When these operations use a flammable or combustible liquid that
has a flashpoint below 140 deg. F (60 deg. C), you must prevent
sparking of static electricity by:
(1) Bonding and grounding all metallic parts (including rotating
parts) and installing static collectors; or
(2) Maintaining a conductive atmosphere (for example, one with a
high relative humidity) in the vapor area.
(d) What additional requirements apply to vapor degreasing tanks?
(1) You must ensure that the condenser or vapor-level thermostat keeps
the vapor level at least 36 inches (91 cm) or one-half the tank width,
whichever is less,
[[Page 13912]]
below the top of the vapor degreasing tank.
(2) When you use gas as a fuel to heat the tank liquid, you must
prevent solvent vapors from entering the air-fuel mixture. To do this,
you must make the combustion chamber airtight (except for the flue
opening).
(3) The flue must be made of corrosion-resistant material, and it
must extend to the outside. You must install a draft diverter if
mechanical exhaust is used on the flue.
(4) You must not allow the temperature of the heating element to
cause a solvent or mixture to decompose or to generate an excessive
amount of vapor.
(e) What additional requirements apply to cyanide tanks? You must
ensure that cyanide tanks have a dike or other safeguard to prevent
cyanide from mixing with an acid if a dip tank fails.
(f) What additional requirements apply to spray cleaning tanks and
spray degreasing tanks? If you spray a liquid in the air over an open-
surface cleaning or degreasing tank, you must control the spraying to
the extent feasible by:
(1) Enclosing the spraying operation; and
(2) Using mechanical ventilation to provide enough inward air
velocity to prevent the spray from leaving the vapor area.
(g) What additional requirements apply to electrostatic paint
detearing? (1) You must use only approved electrostatic equipment in
paint-detearing operations. Electrodes in such equipment must be
substantial, rigidly supported, permanently located, and effectively
insulated from ground by nonporous, noncombustible, clean, dry
insulators.
(2) You must use conveyors to support any goods being paint
deteared.
(3) You must ensure that goods being electrostatically deteared are
not manually handled.
(4) Between goods being electrostatically deteared and the
electrodes or conductors of the electrostatic equipment, you must
maintain a minimum distance of twice the sparking distance. This
minimum distance must be displayed conspicuously on a sign located near
the equipment.
(5) You must ensure that the electrostatic equipment has automatic
controls that immediately disconnect the power supply to the high-
voltage transformer and signal the operator if:
(i) Ventilation or the conveyors fail to operate;
(ii) A ground (or imminent ground) occurs anywhere in the high-
voltage system; or
(iii) Goods being electrostatically deteared come within twice the
sparking distance of the electrodes or conductors of the equipment.
(6) You must use fences, rails, or guards, made of conducting
material and adequately grounded, to separate paint-detearing
operations from storage areas and from personnel.
(7) To protect paint-detearing operations from fire, you must have
in place:
(i) Automatic sprinklers; or
(ii) An automatic fire-extinguishing system conforming to the
requirements of subpart L of this part.
(8) To collect paint deposits, you must:
(i) Provide drip plates and screens; and
(ii) Clean these plates and screens in a safe location.
[FR Doc. 99-6824 Filed 3-22-99; 8:45 am]
BILLING CODE 4510-26-P
