[Federal Register Volume 62, Number 54 (Thursday, March 20, 1997)]
[Rules and Regulations]
[Pages 13332-13337]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 97-7096]
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ENVIRONMENTAL PROTECTION AGENCY
40 CFR Parts 52 and 81
[CO-001-0015a; FRL-5700-3]
Clean Air Act Approval and Promulgation of State Implementation
Plan; Colorado; Prevention of Significant Deterioration; Designation of
Areas for Air Quality Planning Purposes
AGENCY: Environmental Protection Agency (EPA).
ACTION: Direct final rule.
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SUMMARY: In this document, EPA is approving revisions to Colorado's
prevention of significant deterioration (PSD) permitting requirements
in Regulation No. 3, which were submitted as revisions to the State
Implementation Plan (SIP) by the Governor on August 1, 1996. The
revisions were submitted mainly to address the replacement of the total
suspended particulate (TSP) increments with increments for particulate
matter with an aerodynamic diameter less than or equal to a nominal ten
micrometers (PM-10). EPA is also deleting the TSP area designation
table and revising the PM-10 area designation table in 40 CFR part 81
for Colorado. With the PM-10 increments becoming
[[Page 13333]]
effective in these areas, the TSP area designations no longer serve any
useful purpose relative to PSD.
Also in this document, EPA is amending the language in 40 CFR
52.343(a)(3) to further clarify which sources EPA retains PSD
permitting authority over in the State of Colorado.
DATES: This action will become effective on May 19, 1997 unless adverse
or critical comments are received by April 21, 1997. If the effective
date is delayed, timely notice will be published in the Federal
Register.
ADDRESSES: Copies of the State's submittal and other information are
available for inspection during normal business hours at the following
locations: Air Program, Environmental Protection Agency, Region VIII,
999 18th Street, Suite 500, Denver, Colorado 80202-2405; Colorado
Department of Public Health and Environment, Air Pollution Control
Division, 4300 Cherry Creek Drive South, Denver, Colorado 80222-1530;
and The Air and Radiation Docket and Information Center, 401 M Street,
SW, Washington, D.C. 20460.
FOR FURTHER INFORMATION CONTACT: Vicki Stamper, 8P2-A, at (303) 312-
6445.
SUPPLEMENTARY INFORMATION:
I. Background
In this document, EPA is acting on revisions to the PSD permitting
program in Regulation No. 3 for the State of Colorado. The State's
revisions were generally made to address the replacement of the TSP
increments with increments for PM-10 in the Federal PSD permitting
requirements in 40 CFR 51.166, which were promulgated by EPA on June 3,
1993 (58 FR 31622-31638). The State also made other minor
administrative changes to Regulation No. 3. This document evaluates the
State's submittal for conformity with the corresponding Federal
regulations and the requirements of the Clean Air Act (Act). In
addition, this document provides justification regarding the removal of
the TSP area designation table in 40 CFR part 81 for Colorado.
Also in this document, EPA is amending the language in 40 CFR
52.343(a)(3) to further clarify which sources EPA retains PSD
permitting authority over in the State of Colorado. EPA is making this
correction pursuant to section 110(k)(6) of the Act.
II. This Action
A. Analysis of State Submission
1. Procedural Background
The Act requires States to observe certain procedural requirements
in developing implementation plans and plan revisions for submission to
EPA. Section 110(a)(2) of the Act provides that each implementation
plan submitted by a State must be adopted after reasonable notice and
public hearing. Section 110(l) of the Act similarly provides that each
revision to an implementation plan submitted by a State under the Act
must be adopted by such State after reasonable notice and public
hearing.
The EPA also must determine whether a submittal is complete and
therefore warrants further EPA review and action [see section 110(k)(1)
and 57 FR 13565, April 16, 1992]. The EPA's completeness criteria for
SIP submittals are set out at 40 CFR part 51, appendix V. The EPA
attempts to make completeness determinations within 60 days of
receiving a submission. However, a submittal is deemed complete by
operation of law under section 110(k)(a)(B) if a completeness
determination is not made by EPA within six months after receipt of the
submission.
A public hearing to entertain public comment on the initial PSD SIP
revision was held by the State of Colorado on August 17, 1995, and the
rule revisions were subsequently adopted by the State. The rule
revisions were formally submitted to EPA for approval on August 1,
1996. The SIP revision was reviewed by EPA to determine completeness
shortly after its submittal, in accordance with the completeness
criteria referenced above. The submittal was found to be complete, and
a letter dated September 26, 1996 was forwarded to the Governor
indicating the completeness of the submittal and the next steps to be
taken in the processing of the SIP submittal.
2. Evaluation of State's Submittal
a. PM-10 Increment Revisions. As discussed above, EPA promulgated
increments for PM-10 on June 3, 1993 (see 58 FR 31622-31638). EPA
promulgated revisions to the Federal PSD permitting regulations in 40
CFR 52.21, as well as to the PSD permitting requirements that State
programs must meet in order to be approved into the SIP in 40 CFR
51.166. EPA or its delegated State programs were required to begin
implementation of the increments by June 3, 1994, while the
implementation date for States with SIP-approved PSD permitting
programs (such as Colorado) will be the date on which EPA approves the
revised State PSD program containing the PM-10 increments. In
accordance with 40 CFR 51.166(a)(6)(i), States with SIP-approved PSD
programs were required to adopt the PM-10 increment requirements within
nine months of the effective date (or by March 3, 1995). For further
background regarding the PM-10 increments, see the June 3, 1993 Federal
Register notice.
In order to address the PM-10 increments, Colorado revised the
following sections of its PSD permitting regulations in Colorado
Regulation No. 3:
(1) The definition of ``baseline area'' in Section I.B.10. of Part
A of Regulation No. 3 was revised to conform with 40 CFR
51.166(b)(15)(iii);
(2) The definition of ``minor source baseline date'' in Section
I.B.35. of Part A of Regulation No. 3 was revised to conform with 40
CFR 51.166(b)(14)(iv);
(3) The definition of ``net emissions increase'' in Section I.B.37.
of Part A of Regulation No. 3 was revised to conform with 40 CFR
51.166(3)(iv);
(4) The State added language to Section IV.D.3.b.(v) of Part B of
Regulation No. 3 to address the provisions in 40 CFR 51.166(i)(12),
which allows a State to provide an exemption from addressing the new
PM-10 increments for sources who have submitted a PSD permit
application which the State has determined to be complete before the
PM-10 increments take effect;
(5) The State revised the increments tables in Section VII.A.1. of
Part B of Regulation No. 3 to incorporate the PM-10 increments in 40
CFR 51.166(c);
(6) The State revised Section X.D. of Part B of Regulation No. 3 to
address the changes reflecting PM-10 increments in 40 CFR 51.166(p)(4);
and
(7) The State revised Section V.D.11. of Part A of Regulation No.
3, which discusses when modeling is required to determine ambient
equivalence of emissions trades, to replace the TSP Class I increments
with the PM-10 Class I increments (for determining whether an ambient
impact is significant).
EPA has reviewed these revisions and has found that the revisions
address all of the required regulatory revisions for PM-10 increments
promulgated by EPA on June 3, 1993.
b. TSP Area Deletions. Section 107(d) of the 1977 Amendments to the
Act authorized each State to submit to the Administrator a list
identifying those areas which (1) do not meet a national ambient air
quality standard (NAAQS) (nonattainment areas), (2) cannot be
classified on the basis of available ambient data (unclassifiable
areas), and (3) have ambient air quality levels better than the NAAQS
(attainment areas). In 1978, the EPA published the original list of all
area designations pursuant to section 107(d)(2) (commonly referred to
[[Page 13334]]
as ``section 107 areas''), including those designations for TSP, in 40
CFR part 81.
One of the purposes stated in the Act for the section 107 areas is
for implementation of the statutory requirements for PSD. The PSD
provisions of part C of the Act generally apply in all section 107
areas that are designated attainment or unclassifiable [40 CFR
52.21(i)(3)]. Under the PSD program, the air quality in an attainment
or unclassifiable area is not allowed to deteriorate beyond prescribed
maximum allowable increases in pollutant concentrations (i.e.,
increments).
EPA revised the primary and secondary NAAQS for particular matter
on July 1, 1987 (52 FR 24634), eliminating TSP as the indicator for the
NAAQS and replacing it with the PM-10 indicator. However, EPA did not
delete the section 107 areas for TSP listed in 40 CFR part 81 at that
time because there were no increments for PM-10 promulgated at that
time.1 States were required to continue implementing the TSP
increments in order to prevent significant deterioration of particulate
matter air quality until the PM-10 increments replaced the TSP
increments. With the State adoption and implementation of the PM-10
increments becoming effective, the TSP area designations generally
serve no useful purpose relative to the PSD program. Instead, the PM-10
area designations now serve to properly identify those areas where air
quality is better than the NAAQS, i.e., ``PSD areas,'' and to provide
the geographic link necessary for implementation of the PM-10
increments.2
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\1\ The EPA did not promulgate new PM-10 increments
simultaneously with the promulgation of the PM-10 NAAQS. Under
section 166(b) of the Act, EPA is authorized to promulgate new
increments ``not more than 2 years after the date of promulgation of
* * * standards.'' Consequently, EPA temporarily retained the TSP
increments, as well as the section 107 areas for TSP.
\2\ It should be noted that 40 CFR part 81 does not presently
list all section 107 areas for PM-10. Only those areas designated
``nonattainment'' appear in the State listings. This is because
under the listings published by EPA in the Federal Register on
November 6, 1991, EPA's primary objective was to identify
nonattainment areas designated as such by operation of law upon
enactment of the 1990 Amendments. For States having no PM-10
nonattainment areas designated by operation of law, EPA did not
include a new PM-10 listing. Nevertheless, section 107(d)(4)(B)(iii)
mandates that all areas not designated nonattainment for PM-10 by
operation of law, are designated unclassifiable. The PM-10
increments apply in any area designated unclassifiable for PM-10.
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Thus, in the June 3, 1993 Federal Register notice in which EPA
promulgated the PM-10 increments, EPA stated that, for States with SIP-
approved PSD programs, EPA would delete the TSP area designations at
the same time EPA approves the revision to a State's plan incorporating
the PM-10 increments. In deleting any State's TSP area designations,
EPA must ensure that the deletion of those designations will not result
in a relaxation of any control measures that ultimately protect the PM-
10 NAAQS.
The following TSP nonattainment areas in Colorado are included in
nonattainment designations for PM-10: the Boulder Urbanized Area and
the Denver Urbanized Area. The State has adopted a PM-10 SIP for the
Denver Metropolitan area (which includes the Boulder area). Thus, EPA
believes it is appropriate at this time to delete the TSP area
designations for these areas.
Colorado has three areas listed in 40 CFR part 81 as nonattainment
for the TSP standards but which are not designated nonattainment for
PM-10: the cities of Fort Collins and Greeley, the Colorado Springs 3-C
urbanized area, and the Grand Junction urbanized area. EPA has reviewed
the existing approved particulate matter control strategies for these
areas and has determined that the deletion of the TSP nonattainment
status for these areas will not result in a relaxation of any controls
that would adversely impact the PM-10 NAAQS. Consequently, EPA believes
it is appropriate at this time to delete the TSP designations for these
areas. If the State subsequently revises any of the particulate matter
control strategies currently in the SIP for these areas, it must submit
a SIP revision to EPA for approval that must meet all applicable
Federal requirements.
As stated above, the State has adopted adequate provisions in its
PSD program for the implementation of the PM-10 increments. Therefore,
EPA is deleting the State's existing TSP designation table in 40 CFR
81.306.
c. Other Administrative Revisions. As discussed above, the State
made other minor administrative revisions to Regulation No. 3 in its
August 1, 1996 SIP submittal. These revisions included correction of
errors in the numbering of certain sections, errors which occurred in
the printing of Regulation No. 3 in the Code of Colorado Regulations,
and other minor deficiencies. Specifically in Part A of Regulation No.
3, the State revised the numbering of the definitions in Section I.B.,
Section I.B.36., Sections IV.B. and C., and Section V.C.1. Regarding
Section I.B. which contains the definitions applicable to Regulation
No. 3, EPA noted additional numbering errors in this section which the
State needs to correct. Therefore, EPA is not approving the revisions
to this section at this time, with the exception of those specific
definitions that were revised to reflect the PM-10 PSD increments (as
discussed in Section II.A.2.a. of this document).
EPA believes it is appropriate to approve all of the other minor
revisions at this time, with the exception of Section IV.C. of Part A.
This provision in this section, which allows for emissions trading
under a construction or title V operating permit cap, was originally
submitted as a revision to the SIP on November 12, 1993 along with many
other revisions to Regulation No. 3. In EPA's January 21, 1997 Federal
Register promulgating action on the State's November 12, 1993
submittal, EPA did not take action on Section IV.C. of Part A of
Regulation No. 3. For the reasons stated in that Federal Register, EPA
is not taking action on the revisions to Section IV.C. in this action.
(See 62 FR 2911 for further details.)
B. Amendment to 40 CFR 52.343(a)(3)
On September 2, 1986, EPA approved Colorado's PSD regulations (51
FR 31125). In that approval, EPA indicated that the Federal PSD
regulations would remain in effect for sources that had previously
received PSD permits from EPA. On June 15, 1987, EPA issued a
correction notice regarding the approval of Colorado's PSD regulations
(52 FR 22638). In that correction notice, EPA revised language in 40
CFR 52.343(a)(10) 3 to clarify that EPA was retaining PSD
authority not only for sources which received a PSD permit from EPA
before September 2, 1986, but also for sources that constructed before
EPA's September 2, 1986 approval of Colorado's PSD regulations. EPA
explained that this correction was needed because Colorado's PSD
regulations allowed Colorado to issue PSD permits only to sources that
applied for a permit after EPA's approval of Colorado's PSD program.
EPA further explained that neither EPA nor Colorado intended to create
any gaps in the PSD program through EPA approval of the Colorado
regulations.
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\3\ Note: 40 CFR 52.343(a)(10) was redesignated as 40 CFR
52.343(a)(4) on August 18, 1994 (59 FR 42506), and 40 CFR
52.343(a)(4) was redesignated as 40 CFR 52.343(a)(3) on January 21,
1997 (62 FR 2914).
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The approval language in the June 15, 1987 correction notice has
led to some confusion. The correction notice focused only on the status
of sources as of the date of approval of Colorado's PSD program and did
not consider future source changes or permit applications. For example,
major sources subject to EPA's PSD regulations may have constructed or
modified before September 2, 1986 without applying for a PSD permit. If
[[Page 13335]]
these sources were to apply to Colorado for a PSD permit after
September 2, 1986, Colorado would have authority under Colorado law to
issue PSD permits to such sources. However, the language in EPA's June
15, 1987 correction notice might be read to require that EPA issue
permits to such sources. This would be contrary to EPA's intent in
issuing the correction notice which was to eliminate any gaps in
coverage, not to retain authority in instances in which Colorado has
the authority to issue PSD permits under State law. In addition, the
correction notice did not address the question of which agency should
issue permits to sources that received permits from EPA before
September 2, 1986, but that seek a major modification after September
2, 1986. Similar questions pertain to major sources which constructed
before EPA's PSD program became effective, and then later seek a major
modification.
Accordingly, EPA believes it is appropriate to correct the language
currently in 40 CFR 52.343(a)(3) to clarify that the retention of EPA's
PSD authority applies only to sources which constructed prior to
September 2, 1986 and which have not otherwise subjected themselves to
Colorado's PSD permitting regulations after September 2, 1986, either
through application to Colorado for a PSD permit (in the case of those
sources which improperly constructed without obtaining a PSD permit) or
through application to Colorado for a major modification to the source.
This correction is consistent with the manner in which EPA and Colorado
have been implementing the PSD program within Colorado. EPA is making
this correction under section 110(k)(6) of the Act.
Note that this action does not alter Colorado's PSD permitting
jurisdiction. The State does not have authority to issue PSD permits to
new or modified stationary sources proposing to locate within the
exterior boundaries of Indian reservations or on Indian lands; EPA
retains PSD permitting authority for such sources. [See 40 CFR
52.343(a)(1) & (2).]
III. Final Action
Based on the review and justification provided in this document and
the accompanying Technical Support Document (TSD), EPA is approving the
SIP revision regarding PSD permitting submitted by the State of
Colorado on August 1, 1996. However, for the reasons discussed above,
EPA is not acting on the minor administrative changes made to Section
I.B. of Part A of Regulation No. 3, nor is EPA acting on Section IV.C.
of Part A of Regulation No. 3 at this time. In addition, EPA is
deleting Colorado's TSP area designation table in 40 CFR 81.306, and
EPA is revising the PM-10 area designation table in 40 CFR 81.306 to
add the following areas designated as unclassifiable for PM-10: 4
Air Quality Control Region (AQCR) 1, AQCR 2, AQCR 3 (excluding the
Denver Metropolitan moderate PM-10 nonattainment area), AQCR 4, AQCR 5,
AQCR 6 (excluding the Lamar moderate PM-10 nonattainment area), AQCR 7,
AQCR 8, AQCR 9 (excluding the Pagosa Springs moderate PM-10
nonattainment area), AQCR 10 (excluding the Telluride moderate PM-10
nonattainment area), AQCR 11, AQCR 12 (excluding the Aspen/Pitkin
County and Steamboat Springs Area Airshed moderate PM-10 nonattainment
areas), and AQCR 13 (excluding the Canon City moderate PM-10
nonattainment area). Since these AQCRs encompass the entire State, EPA
is deleting the ``Rest of State'' PM-10 area.
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\4\ EPA is designating the PM-10 areas as unclassifiable, rather
than attainment, at this time to be consistent with section
107(d)(4)(B) of the Act which stated that any area which was not
initially designated as nonattainment for PM-10 shall be designated
unclassifiable. EPA will consider redesignating these areas to
``attainment'' status at a later date. Both ``unclassifiable'' and
``attainment'' areas have the same status for PSD purposes.
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EPA is also amending the language in 40 CFR 52.343(a)(3) to further
clarify which sources EPA retains PSD permitting authority over in the
State of Colorado.
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 May 19, 1997 unless, by April 21, 1997, adverse or critical
comments are received.
If EPA receives such comments, this action will be withdrawn before
the effective date by publishing a subsequent document that will
withdraw the final action. All public comments received will then be
addressed in a subsequent final rule based on this action serving as a
proposed rule. 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 on May 19, 1997.
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 a SIP shall be
considered separately in light of specific technical, economic, and
environmental factors and in relation to relevant statutory and
regulatory requirements.
IV. Administrative Requirements
A. Executive Order 12866
This action has been classified as a Table 3 action for signature
by the Regional Administrator under the procedures published in the
Federal Register on January 19, 1989 (54 FR 2214-2225), as revised by a
July 10, 1995 memorandum from Mary Nichols, Assistant Administrator for
Air and Radiation. 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. 5 U.S.C. 603 and 604.
Alternatively, EPA may certify that the rule will not have a
significant economic 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.
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 small entities affected. Moreover, due
to the nature of the Federal-state relationship under the Act,
preparation of a regulatory 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.
Union Electric Co. v. U.S. E.P.A., 427 U.S. 246, 256-66 (1976); 42
U.S.C. 7410(a)(2).
C. Unfunded Mandates
Under section 202 of the Unfunded Mandates Reform Act of 1995
(``Unfunded Mandates Act''), 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
[[Page 13336]]
aggregate; or to the 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.
EPA has determined that the approval action proposed 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 pre-
existing 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 Clean Air Act, petitions for
judicial review of this action must be filed in the United States Court
of Appeals for the appropriate circuit by May 19, 1997. 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 must 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
40 CFR Part 52
Environmental protection, Air pollution control, Incorporation by
reference, Intergovernmental relations, Particulate matter, Reporting
and recordkeeping requirements.
40 CFR Part 81
Air pollution control, National parks, Wilderness areas.
Dated: February 27, 1997.
Patricia D. Hull,
Acting Regional Administrator.
Title 40, chapter I of the Code of Federal Regulations is amended
as follows:
1. The authority citation for parts 52 and 81 continue to read as
follows:
Authority: 42 U.S.C. 7401-7671q.
PART 52--[AMENDED]
2. Section 52.320 is amended by adding paragraph (c)(81) to read as
follows:
Sec. 52.320 Identification of plan.
* * * * *
(c) * * *
(81) On August 1, 1996, the Governor of Colorado submitted
revisions to the prevention of significant deterioration regulations in
Regulation No. 3 to incorporate changes in the Federal PSD permitting
regulations for PM-10 increments and to make other minor administrative
revisions.
(i) Incorporation by reference.
(A) Regulation No. 3, Air Contaminant Emissions Notices, 5 CCR
1001-5, revisions adopted 8/17/95, effective 10/30/95, as follows: Part
A, Section I.B., as follows: the definition of ``baseline area'' in
subsection 10, the definition of ``minor source baseline date'' in
subsection 35, and the definition of ``net emissions increase'' in
subsection 37; Part A: Sections IV.B., V.C.1., and V.D.11.c.; Part B:
Sections IV.D.3.b.(v), VII.A.1., and X.D.
3. Section 52.343 is amended by revising paragraph (a)(3) to read
as follows:
Sec. 52.343 Significant deterioration of air quality.
* * * * *
(a) * * *
(3) Sources which constructed prior to September 2, 1986 and which
have not otherwise subjected themselves to Colorado's PSD permitting
regulations after September 2, 1986, either through application to
Colorado for a PSD permit (in the case of those sources which
improperly constructed without obtaining a PSD permit) or through
application to Colorado for a major modification to the source.
* * * * *
PART 81--[AMENDED]
4. Section 81.306 is amended by removing the table for ``Colorado-
TSP'' and by removing the entry in the table for ``Colorado-PM-10'' for
``Rest of State.''
5. Section 81.306 is amended by adding entries at the end of the
table for ``Colorado-PM-10'' for ``AQCR 1'', ``AQCR 2,'' ``AQCR 3,''
``AQCR 4,'' ``AQCR 5,'' ``AQCR 6,'' AQCR 7,'' AQCR 8,'' ``AQCR 9,''
``AQCR 10,'' ``AQCR 11,'' ``AQCR 12,'' and ``AQCR 13'' to read as
follows:
Sec. 81.306 Colorado.
* * * * *
Colorado--PM-10
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Designation Classification
Designated area ------------------------------------------------------------------------------
Date Type Date Type
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* * * *
AQCR 1........................... 11/15/90 Unclassifiable
AQCR 2........................... 11/15/90 Unclassifiable
AQCR 3 (excluding the Denver 11/15/90 Unclassifiable
Metropolitan PM-10 nonattainment
area).
AQCR 4........................... 11/15/90 Unclassifiable
AQCR 5........................... 11/15/90 Unclassifiable
AQCR 6 (excluding the Lamar PM-10 11/15/90 Unclassifiable
nonattainment area).
AQCR 7........................... 11/15/90 Unclassifiable
AQCR 8........................... 11/15/90 Unclassifiable
AQCR 9 (excluding the Pagosa 11/15/90 Unclassifiable
Springs PM-10 nonattainment
area).
AQCR 10 (excluding the Telluride 11/15/95 Unclassifiable
PM-10 nonattainment area).
AQCR 11.......................... 11/15/95 Unclassifiable
[[Page 13337]]
AQCR 12 (excluding the Aspen/ 11/15/90 Unclassifiable
Pitkin County and Steamboat
Springs Area Airshed PM-10
nonattainment areas).
AQCR 13 (excluding the Canon City 1/15/90 Unclassifiable
PM-10 nonattainment area).
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[FR Doc. 97-7096 Filed 3-19-97; 8:45 am]
BILLING CODE 6560-50-P
