[Federal Register Volume 62, Number 54 (Thursday, March 20, 1997)]
[Proposed Rules]
[Page 13359]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 97-7101]


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ENVIRONMENTAL PROTECTION AGENCY
40 CFR Parts 52 and 81

[CO-001-0015b; FRL-5700-4]


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: Notice of proposed rulemaking.

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SUMMARY: EPA proposes to approve 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. EPA also proposes to 
delete the TSP area designation table and to revise the PM-10 area 
designation table in 40 CFR part 81 for Colorado. In addition, EPA 
proposes to amend the language in 40 CFR 52.343(a)(3) to clarify 
Colorado's PSD permitting authority.
    In the final rules section of this Federal Register, the EPA is 
approving the State's SIP revision and promulgating these amendments as 
a direct final rule without prior proposal because the Agency views 
this action as noncontroversial and anticipates no adverse comments. A 
detailed rationale for the action is set forth in the direct final 
rule. If no adverse comments are received in response to this proposed 
rule, no further activity is contemplated in relation to this rule. If 
EPA receives adverse comments, then the direct final rule will be 
withdrawn and all public comments received will be addressed in a 
subsequent final rule based on this proposed rule. EPA will not 
institute a second comment period on this notice. Any parties 
interested in commenting on this notice should do so at this time.

DATES: Comments on this proposed action must be received in writing by 
April 21, 1997.

ADDRESSES: Written comments on this action should be addressed to Vicki 
Stamper, 8P2-A, at the EPA Regional Office listed below. Copies of the 
documents relevant to this proposed rule are available for public 
inspection during normal business hours at the following locations: Air 
Program, Environmental Protection Agency, Region VIII, 999 18th Street, 
Suite 500, Denver, Colorado 80202-2466; and Colorado Department of 
Public Health and Environment, Air Pollution Control Division, 4300 
Cherry Creek Drive South, Denver, Colorado 80202-1530.

FOR FURTHER INFORMATION CONTACT: Vicki Stamper, 8P2-A, at (303) 312-
6445.

SUPPLEMENTARY INFORMATION: See the information provided in the Direct 
Final notice of the same title which is located in the Rules Section of 
this Federal Register.

    Dated: February 27, 1997.
Patricia D. Hull,
Acting Regional Administrator.
[FR Doc. 97-7101 Filed 3-19-97; 8:45 am]
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