[Federal Register Volume 62, Number 231 (Tuesday, December 2, 1997)]
[Rules and Regulations]
[Pages 63658-63662]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 97-31408]
[[Page 63658]]
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ENVIRONMENTAL PROTECTION AGENCY
40 CFR Part 52
[LA35-1-7305a; FRL-5928-2]
Approval and Promulgation of Air Quality Implementation Plans,
Louisiana; Reasonable Available Control Technology for Emissions of
Volatile Organic Compounds
AGENCY: Environmental Protection Agency (EPA).
ACTION: Direct final rule.
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SUMMARY: In this action, the EPA is conditionally approving in part,
and fully approving in part, revisions to the Louisiana State
Implementation Plan (SIP). The revisions incorporate regulations to
control Volatile Organic Compound (VOC) emissions from major stationary
sources by means of Reasonable Available Control Technology (RACT). The
major stationary source category controlled by the conditionally
approved regulation is Synthetic Organic Chemical Manufacturing
Industry (SOCMI) batch processes. The major stationary source
categories controlled by the fully approved regulations are SOCMI
reactors, SOCMI distillation, and industrial cleanup solvents. The
intended effect of these rules is to reduce VOC emissions into the
ambient air and thereby reduce ground-level ozone concentrations. Both
EPA's full and conditional approval of these regulations makes them
federally enforceable.
The full approval of the revisions to the SIP to control VOC
emissions from the batch processes source category is contingent upon
the State of Louisiana submitting a revision of the single unit
operation exemptions of the SOCMI batch processing rule. If the State
fails to submit a revision to the batch processing rule within one year
of the conditional approval of these SIP revisions, the conditional
approval will convert to a disapproval.
In the proposed rules section of today's Federal Register, the EPA
is proposing and seeking public comment on the same conditional and
final approvals of the Louisiana SIP that are discussed in this notice.
If adverse comments are received on these approvals, the EPA will
withdraw the direct final rule and address the comments received in a
subsequent final rule, based on the related proposed rule. No
additional opportunity for public comment will be provided.
DATES: This action is effective on February 2, 1998 unless adverse or
critical comments are received by January 2, 1998. If the effective
date is delayed, a timely notice will be published in the Federal
Register.
ADDRESSES: Written comments on this action should be addressed to Mr.
Thomas Diggs, Chief, Air Planning Section (6PD-L), at the EPA Region 6
Office listed below.
Copies of the documents relevant to this action are available for
public inspection during normal business hours at the following
locations. Interested persons wanting to examine these documents should
make an appointment with the appropriate office at least two working
days in advance.
Environmental Protection Agency, Region 6, Air Planning Section
(6PD-L), Multimedia Planning and Permitting Division, Region 6, Dallas,
1445 Ross Avenue, Texas 75202-2733, telephone: (214) 665-7214.
Air Quality Division, Louisiana Department of Environmental Quality
(LDEQ), 7290 Bluebonnet Boulevard, Baton Rouge, Louisiana 70810,
telephone: (504) 765-7247.
Documents which are incorporated by reference are available for
public inspection at the Air and Radiation Docket and Information
Center, Environmental Protection Agency, 401 M Street, SW., Washington,
DC 20460.
FOR FURTHER INFORMATION CONTACT: Mr. Eaton R. Weiler, Air Planning
Section (6PD-L), Multimedia Planning and Permitting Division,
Environmental Protection Agency, Region 6, 1445 Ross Avenue, Dallas,
Texas 75202-2733, telephone: (214) 665-2174.
SUPPLEMENTARY INFORMATION:
I. Background
A. Background of VOC RACT Rule Requirements
Section 172 of the Clean Air Act (the Act) as amended in 1990,
entitled Nonattainment Plan Provisions in General, requires that states
adopt RACT rules for major stationary sources of VOCs located in ozone
nonattainment areas. The RACT is defined as the lowest emission
limitation that a particular source is capable of meeting by the
application of control technology that is reasonably available,
considering technological and economic feasibility as defined in 44 FR
53761 (September 17, 1979). In accordance with section 108 of the Act,
the EPA publishes Control Technique Guideline (CTG) documents in order
to assist the States in developing RACT rules for source categories.
The CTGs provide information on available air pollution control
techniques and provide recommendations on what the EPA considers the
``presumptive norm'' for RACT.
Sections 182(b)(2) and 182(c) of the Act as amended in 1990 require
States to adopt RACT rules for three general groups of major stationary
sources of VOCs located in ozone nonattainment areas designated as
moderate or above. The first group consists of sources covered by an
existing CTG (a CTG issued prior to the enactment of the 1990 Act
amendments). The second group consists of sources covered by a CTG
issued after the enactment of the 1990 Act amendments. These CTGs are
referred to as ``post-enactment'' CTGs. The third group consists of
major sources not covered by a CTG. These sources are referred to as
``non-CTG'' sources.
Under section 302(j), the Act defines major source as any source
which has the potential to emit 100 tons per year or more of any air
contaminant unless otherwise expressly provided. Under section 182(c),
a major source is defined as any source which is located in an area
designated as a serious ozone non-attainment area and has the potential
to emit 50 tons per year or more of VOCs. Therefore, in the Baton Rouge
five parish serious ozone nonattainment area, a major source definition
is the potential to emit 50 tons per year or more of VOCs.
Under section 183 of the Act as amended in 1990, entitled Federal
Ozone Measures, the EPA is required to issue CTGs for 13 source
categories by November 15, 1993. Two specific source categories are
listed under section 183: aerospace coatings and solvents, and
shipbuilding operations. The other 11 categories are listed in 57 FR
18077 (April 28, 1992) and are as follows:
1. SOCMI distillation.
2. SOCMI reactors.
3. Wood furniture.
4. Plastic parts business machines.
5. Plastic parts coating (other).
6. Offset lithography.
7. Industrial wastewater.
8. SOCMI batch processing.
10. Volatile Organic Liquid (VOL) storage tanks.
11. Clean-up solvents.
To date, CTGs have been published for four of the thirteen source
categories: SOCMI distillation, SOCMI reactors, wood furniture, and
shipbuilding. As described in a January 20, 1994 memorandum from John
Seitz, Director of the EPA's Office of Air Quality Planning and
Standards, the EPA plans to make available Alternative Control
Technology (ACT) documents for the CTG source categories for which CTG
documents have not yet been published.
[[Page 63659]]
These ACT documents provide much of the same information as the CTG
documents, however, instead of establishing a presumptive norm for RACT
rule, these documents provide options for control.
On April 28, 1992 (57 FR 18077), the EPA interpreted the Act to
allow a State to submit a non-CTG rule by November 15, 1992, or to
defer submittal of a RACT rule for sources that the State anticipated
would be covered by a post-enactment CTG. For post-enactment CTGs, the
amended Act requires States to submit RACT rules in accordance with the
schedule specified in the corresponding CTG document. If the EPA failed
to issue a CTG by November 15, 1993, the responsibility shifted to the
State to submit a non-CTG RACT rule for those sources by November 15,
1994.
B. Negative Declarations
In agreement with EPA policy, if there are no major sources of VOC
emissions in a CTG source category located in a nonattainment area, the
State should submit a formal statement of the nonexistence of such
major sources, i.e., a negative declaration. On April 6 and June 20,
1994, the State of Louisiana submitted letters of negative declaration
for the following CTG source categories: aerospace coatings and
solvents, shipbuilding operations, offset lithography, plastic parts--
business machines, plastic parts--other, and wood furniture. The EPA
approved these letters on October 30, 1996, in 61 FR 55894. A CTG
document was published in April 1996, for wood furniture which lowered
the threshold for a source to be considered major in the wood furniture
source category to 25 tons per year or more in an ozone nonattainment
area. On January 28, 1997, the State of Louisiana submitted a letter of
negative declaration for the wood furniture category based on the lower
major source threshold.
II. State Submittal
On December 15, 1995, the State of Louisiana submitted to the EPA
five sets of rules which require six source categories to apply RACT to
VOC emissions from major stationary sources located in the Baton Rouge
ozone nonattainment area. In Louisiana, the following five parishes
areas are designated as serious: Ascension, East Baton Rouge,
Iberville, Livingston, and West Baton Rouge. The applicable source
categories are VOL tank storage, SOCMI reactors, SOCMI distillation,
SOCMI batch processes, industrial wastewater, and industrial cleanup
solvents. The rules also apply to Pointe Coupee Parish and Calcasieu
Parish, formerly serious and marginal ozone nonattainment areas,
respectively. These rules were published in the Louisiana Register on
April 20, September 20, and November 20, 1995.
No action is being taken on the industrial wastewater portion of
the December 15, 1995, submittal. The EPA has identified provisions
which are deficient with respect to EPA guidance. In short, the EPA has
concerns with the rule provisions which are followed to determine the
characteristics of the wastewater stream, and the testing requirements
for biological treatment units.
The EPA has previously approved Louisiana's RACT rule for VOL tank
storage, 33 Louisiana Administrative Code (LAC) 2103, on October 22,
1996 (61 FR 57470) as part of the 15% rate of progress plan submitted
to the EPA on December 15, 1995.
III. Analysis of State Submittal
A. Industrial Cleaning Solvents
Chapter 21 of 33 LAC has been amended to include Section 2157, (33
LAC 2157) Limiting Volatile Organic Compound Emissions from Cleanup
Solvent Processing. Section 2157 is intended to incorporate regulations
which represent RACT for the cleanup solvents CTG-source category.
Facilities affected are those which emit or have the potential to
emit 50 tons per year or more of VOCs, and which use solvents in one or
more of the following nine solvent-cleaning operations: spray gun
cleaning, spray booth cleaning, large manufactured components cleaning,
equipment cleaning, floor cleaning, line cleaning, parts cleaning, tank
cleaning, and small manufactured components cleaning. Geographically,
these rules apply to the five parish Baton Rouge ozone nonattainment
area, and Pointe Coupee and Calcasieu Parishes.
To assist State agencies in developing rules to limit emission of
VOCs which result from industrial cleaning with organic solvents, in
February 1994, the EPA published the ACT document titled Industrial
Cleaning Solvents (EPA-453/R-94-015). The ACT document does not provide
a model regulation or a recommended emission limit representing RACT.
The ACT document does provide considerable information on feasible RACT
options which States can use to define their own RACT levels.
The ACT document recommends the application of an accounting system
which tracks the use, fate, and associated costs (purchase and
disposal) of the cleanup solvents. The accounting system should utilize
the Unit Operations System (UOS) approach. A UOS is defined as the
ensemble of equipment around which a material balance is performed and
includes all possible points/sources from which losses to the
atmosphere could occur as a result of them being cleaned. Completion of
the material balance around a UOS requires measurement of all input and
output VOC-based liquid solvent streams. The difference between these
streams may be assumed to have evaporated as solvent emissions. The UOS
ensembles for the nine solvent-operations listed above are described in
Appendix C of the ACT document.
Another control option discussed in the ACT document is to require
major sources to conduct intensive, short-term studies of solvent types
and uses. The study would review purchase records, distribution
sources, cleanup operations, recycling records and waste disposal
records. The study would identify potential VOC usage reductions such
as cleaning solvent changes and equipment changes.
Utilizing the information gained from the implementation of the UOS
accounting system, the ACT document recommends the State require major
sources to submit individual solvent reduction plans.
Section 2157 of 33 LAC incorporates, as requirements, the control
options outlined in the above listed ACT document. The regulation is
approvable as RACT for the cleanup solvents CTG-source category.
Section 2157 of 33 LAC, requires affected facilities to implement
the following actions: conduct a three-month intensive study of solvent
types and usage, utilize accounting on a unit operation system and,
submit plans to the administrative authority to reduce VOC emissions.
As an alternative to submitting reduction plans, the owner or operator
of affected facilities may report the controls and/or work practices
deemed to be Maximum Achievable Control Technology.
These submitted plans become State enforceable upon approval. A
violation of 33 LAC 2157 occurs if the affected facility does not meet
the state-approved solvent reduction target.
B. Batch Processes
1. EPA Analysis
Chapter 21 of 33 LAC has been amended to include Section 2149, (33
LAC 2149) Limiting Volatile Organic Compound Emissions from Batch
Processing. Section 2149 is intended to incorporate regulations which
represent
[[Page 63660]]
RACT for the batch processing CTG-source category.
Facilities affected are those which emit or have the potential to
emit 50 tons per year or more of VOCs, and fall into one of the
following Standard Industrial Classification code categories: plastic
materials and resins (2821), pharmaceuticals (2833 and 2834), gum and
wood chemicals (2861), cyclic crudes and intermediates (2865),
industrial organic chemicals (2869), and agricultural chemicals (2879).
Geographically, these rules apply to the five parish Baton Rouge ozone
nonattainment area, and Pointe Coupee and Calcasieu Parishes.
To assist State agencies in developing rules to limit emission of
VOCs which result from batch processes, in February 1994, the EPA
published the ACT document titled Control of Volatile Organic Compound
Emissions from Batch Processes (EPA-453/R-93-017). The ACT document
provides a model regulation representing RACT, as well as providing
considerable information on emissions, controls, control options, and
costs that States can use in developing RACT regulations.
In developing a batch processing RACT regulation, the State of
Louisiana closely followed the model rule provided in the ACT. The
purpose of most of the changes from the model rule is to make the
regulations more explicit. All changes are insignificant except the
change to single-unit operation exemptions as discussed below.
As a change to the model rule's single unit operation exemptions,
the State replaced the 500-pound annual emission exemption with the
following annual emission exemptions for specific unit operations: 1800
lbs. for reactors, 1200 lbs. for holding tanks, and 8700 lbs. for
centrifuges. No justification for the revised levels of these
thresholds was provided. Furthermore, by deleting the general single
unit operation exemption and including only three specific unit
operation exemptions, all other unit operations not listed would not be
exempt for analyses no matter how low the level of annual emissions.
2. State Commitment of Revision
On June 17, 1997, the LDEQ submitted a letter committing to revise,
within one year of the date of the publication of this Federal Register
conditional approval, the single unit operation exemptions of the batch
processing rule.
The revision would eliminate the individual process single unit
operation exemptions and set the overall single unit operation
exemption to 500 lb./yr. or less. The revision would also incorporate
language which more explicitly defines the control requirements.
3. EPA Conclusion
With the exception of the single unit operation exemption as
discussed above, 33 LAC 2149, incorporates as requirements, the control
options outlined in the above listed ACT document. With the letter
committing to revise Section 2149(b)(2), single unit operation
exemptions, the regulation is conditionally approvable as RACT for the
batch processing CTG source category.
C. SOCMI Distillation and Reactors
Chapter 21 of 33 LAC, has been amended to include Section 2147, (33
LAC 2147) Limiting Volatile Organic Compound Emissions from Reactor
Processes and Distillation Operations in the Synthetic Organic Chemical
Manufacturing Industry. Section 2147 is intended to incorporate
regulations which represent RACT for both the SOCMI reactors and SOCMI
distillation source categories.
Facilities affected are those which emit or have the potential to
emit 50 tons per year or more of VOCs, and have the Standard Industrial
Major Code 28 classification, Chemicals And Allied Products.
Geographically, these rules apply to the five parish Baton Rouge ozone
nonattainment area, and Pointe Coupee and Calcasieu Parishes.
To assist State agencies in developing rules to limit emission of
VOCs which result from batch processes, in August 1993 the EPA
published the CTG document entitled Control of Volatile Organic
Compound Emissions from Reactor Processes and Distillation Operations
Processes in the Synthetic Organic Chemical Manufacturing Industry. As
well as providing considerable information on emissions, controls, and
costs that the States can use in developing RACT regulations, the CTG
provides a model regulation representing RACT. In developing a SOCMI
distillation and reactor regulation, the State of Louisiana closely
followed the model rule provided in the CTG. The purpose of most of the
changes from the model rule is to make the regulations more explicit.
All changes are unsubstantive except the change made to the flow rate
exemption as discussed below.
As a change to the model rule flow-rate exemption, the State raised
the minimum control flow rate from 0.0085 to 0.011 standard cubic
meters per minute. This change was made to the model rule to be
consistent with the new source performance standards for reactor
processes, 40 CFR 60.700(c)(4). In this way, the RACT rule will not be
more stringent than the performance standards for new sources for
reactor processes. The EPA finds this revision acceptable.
Section 2149 of 33 LAC incorporates as requirements, the control
options outlined in the above listed CTG document. The regulation is
approvable as RACT for the SOCMI reactor and SOCMI distillation source
categories.
IV. Final Action
By this action, the EPA is conditionally approving in part and
fully approving in part the revisions to the Louisiana SIP submitted on
December 15, 1995. The EPA is conditionally approving the revisions to
the SIP to control VOC emissions utilizing RACT from the SOCMI batch
processing source category. The EPA is fully approving in the revisions
to the SIP to control VOC emissions utilizing RACT from the following
major source categories: SOCMI distillation, SOCMI reactor, and clean-
up solvents. The EPA is also approving the letter of negative
declaration for the wood furniture major source category from the LDEQ
dated January 21, 1997.
The full approval of the revision to control VOC emissions
utilizing RACT from the batch processing source category is contingent
upon the State of Louisiana submitting a revision to the single unit
operation exemptions rule. If the State fails to submit a revision to
the batch processing rule within one year of the conditional approval
of these SIP revisions, the conditional approval will convert to a
disapproval.
With the approval of these rules, the applicable requirements
relating to RACT rules of the 12 of the 13 CTG source categories have
been met. The industrial wastewater source category is the only
remaining CTG source category for which no action has been taken. This
source category will be handled in a separate rulemaking action.
The EPA is publishing this action without prior proposal because
the Agency views this as a noncontroversial amendment and anticipates
no adverse comments. However, in a separate document in this Federal
Register publication, EPA is proposing to approve the SIP revision
should adverse or critical comments be filed. This action will be
effective on February 2, 1998, unless, by January 2, 1998, adverse or
critical comments are received.
If EPA receives such comments, this action will be withdrawn before
the effective date by publishing a subsequent action that will withdraw
[[Page 63661]]
the final action. All public comments received will be addressed in a
subsequent final rule based the proposed rule in today's Federal
Register, which incorporate by reference the discussion in this direct
final action. The EPA will not institute a second comment period on
this action. Any parties interested in commenting on this action should
do so at this time. If no such comments are received, the public is
advised that this action will be effective February 2, 1998.
Nothing in this action should be construed as permitting or
allowing or establishing a precedent for any future request for
revision to any SIP. Each request for revision to the SIP shall be
considered separately in light of specific technical, economic, and
environmental factors and in relation to relevant statutory and
regulatory requirements.
V. Administrative Requirements
A. Executive Order (E.O.) 12866
The Office of Management and Budget (OMB) has exempted this
regulatory action from E.O. 12866 review.
B. Regulatory Flexibility Act
Under the Regulatory Flexibility Act, 5 U.S.C. 600 et seq., EPA
must prepare a regulatory flexibility analysis assessing the impact of
any proposed or final rule on small entities. See 5 U.S.C. 603 and 604.
Alternatively, EPA may certify that the rule will not have a
significant impact on a substantial number of small entities. Small
entities include small businesses, small not-for-profit enterprises,
and government entities with jurisdiction over populations of less than
50,000.
The SIP approvals under section 110 and subchapter I, part D of the
Act do not create any new requirements but simply approve requirements
that the State is already imposing. Therefore, because the Federal SIP
approval does not impose any new requirements, I certify that it does
not have a significant impact on any small entities affected. Moreover,
due to the nature of the Federal-State relationship under the Act,
preparation of a flexibility analysis would constitute Federal inquiry
into the economic reasonableness of State action. The Act forbids EPA
to base its actions concerning SIPs on such grounds. See Union Electric
Co. v. U.S. EPA, 427 U.S. 246, 255-66 (1976); 42 U.S.C. 7410(a)(2).
Conditional approvals of SIP submittals under section 110 and
subchapter I, part D of the Act do not create any new requirements but
simply approve requirements that the State is already imposing.
Therefore, because the Federal SIP approval does not impose any new
requirements, I certify that it does not have a significant impact on
any small entities affected. Moreover, due to the nature of the
Federal-State relationship under the Act, preparation of a flexibility
analysis would constitute Federal inquiry into the economic
reasonableness of State action. The Act forbids EPA to base its actions
concerning SIPs on such grounds. See Union Electric Co. v. U.S. EPA,
427 U.S. 246, 255-66 (1976); 42 U.S.C. 7410(a)(2).
If the conditional approval is converted to a disapproval under
section 110(k), based on the State's failure to meet the commitment, it
will not affect any existing State requirements applicable to small
entities. Federal disapproval of the State submittal does not affect
its State-enforceability. Moreover, EPA's disapproval of the submittal
does not impose a new Federal requirement. Therefore, EPA certifies
that this disapproval action does not have a significant impact on a
substantial number of small entities because it does not remove
existing requirements nor does it substitute a new Federal requirement.
C. Unfunded Mandates
Under section 202 of the Unfunded Mandates Reform Act of 1995,
signed into law on March 22, 1995, EPA must prepare a budgetary impact
statement to accompany any proposed or final rule that includes a
Federal mandate that may result in estimated costs to State, local, or
Tribal governments in the aggregate; or to private sector, of $100
million or more. Under section 205, EPA must select the most cost-
effective and least burdensome alternative that achieves the objectives
of the rule and is consistent with statutory requirements. Section 203
requires EPA to establish a plan for informing and advising any small
governments that may be significantly or uniquely impacted by the rule.
The EPA has determined that the approval action promulgated does
not include a Federal mandate that may result in estimated costs of
$100 million or more to either State, local, or Tribal governments in
the aggregate, or to the private sector. This Federal action approves
preexisting requirements under State or local law, and imposes no new
requirements. Accordingly, no additional costs to State, local, or
Tribal governments, or to the private sector, result from this action.
D. Submission to Congress and the General Accounting Office
Under 5 U.S.C. 801(a)(1)(A) as added by the Small Business
Regulatory Enforcement Fairness Act of 1996, EPA submitted a report
containing this rule and other required information to the U.S. Senate,
the U.S. House of Representatives and the Comptroller General of the
General Accounting Office prior to publication of this rule in today's
Federal Register.
This rule is not a ``major rule'' as defined by 5 U.S.C. 804(2).
E. Petitions for Judicial Review
Under section 307(b)(1) of the Act, petitions for judicial review
of this action must be filed in the United States Court of Appeals for
the appropriate circuit by February 2, 1998. Filing a petition for
reconsideration by the Administrator of this final rule does not affect
the finality of this rule for the purposes of judicial review nor does
it extend the time within which a petition for judicial review may be
filed, and shall not postpone the effectiveness of such rule or action.
This action may not be challenged later in proceedings to enforce its
requirements. See section 307(b)(2).
List of Subjects in 40 CFR Part 52
Environmental protection, Air pollution control, Hydrocarbons,
Incorporation by reference, Ozone, Reporting and recordkeeping
requirements, Volatile organic compounds.
Note: Incorporation by reference of the SIP for the State of
Louisiana was approved by the Director of the Federal Register on
July 1, 1982.
Dated: November 10, 1997.
Lynda F. Carroll,
Acting Regional Administrator.
Part 52, chapter I, title 40 of the Code of Federal Regulations is
amended as follows:
PART 52--[AMENDED]
1. The authority citation of part 52 continues to read as follows:
Authority: 42 U.S.C. 7401-7671q.
Subpart T--Louisiana
2. Section 52.970 is amended by adding paragraph (c)(74) to read as
follows:
Sec. 52.970 Identification of plan.
* * * * *
(c) * * *
(74) Revisions to the Louisiana Department of Environmental Quality
Regulation Title 33, Part III, Chapter 21,
[[Page 63662]]
Control of Emission of Organic Compounds, submitted by the Governor on
December 15, 1995.
(i) Incorporation by reference.
(A) LAC, Title 33, Part III, Chapter 21, Section 2147, Limiting
Volatile Organic Compound Emissions from Reactor Processes and
Distillation Operations in the Synthetic Organic Chemical Manufacturing
Industry, adopted in the Louisiana Register on April 20, 1995 (LR
21:380).
(B) LAC, Title 33, Part III, Chapter 21, Section 2149, Limiting
Volatile Organic Compound Emissions from Batch Processing, adopted in
the Louisiana Register on April 20, 1995 (LR 21:387).
(C) LAC, Title 33, Part III, Chapter 21, Section 2151, Limiting
Volatile Organic Compound Emissions from Cleanup Solvent Processing,
adopted in the Louisiana Register on April 20, 1995 (LR 21:391).
(ii) Additional material.
(A) Letter of negative declaration for wood furniture dated January
21, 1997, from the State of Louisiana Department of Environmental
Quality.
3. Section 52.994 is amended by designating the existing text as
paragraph (a) and adding paragraph (b) to read as follows:
Sec. 52.994 Conditional approvals.
* * * * *
(b) Reasonable Available Control Technology for the Synthetic
Organic Chemical Manufacturing Industry Batch Processing Source
Category. A letter dated June 17, 1997 from the Assistant Secretary of
the Louisiana Department of Environmental Quality to the EPA Regional
Administrator commits the State to make corrections in LAC
33.III.2149.A.2.b to restore the general single unit operation
exemption to 500 pounds per year or less. The State commits to make the
above rule change within one year from the Federal Register publication
of the conditional approval of the batch processing Reasonable
Available Control Technology rule.
[FR Doc. 97-31408 Filed 12-1-97; 8:45 am]
BILLING CODE 6560-50-P
