[Federal Register Volume 59, Number 238 (Tuesday, December 13, 1994)]
[Unknown Section]
[Page 0]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 94-30513]


[[Page Unknown]]

[Federal Register: December 13, 1994]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[MT22-1-6399b, MT9-3-6561b, & MT13-2-6560b; FRL-5118-4]

 

Clean Air Act Approval and Promulgation of State Implementation 
Plan for Montana; Missoula; PM10 and CO Contingency Measures and 
Local Regulations; Disapproval of Missoula Variance Provision

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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SUMMARY: EPA proposes to approve the State implementation plan (SIP) 
revisions submitted by the State of Montana with a letter dated March 
2, 1994. This submittal addresses the Federal Clean Air Act requirement 
to submit contingency measures for both particulate matter with an 
aerodynamic diameter less than or equal to a nominal 10 micrometers 
(PM10) and for carbon monoxide (CO) for the areas in Missoula 
designated as nonattainment for the PM10 and CO National Ambient 
Air Quality Standards (NAAQS). Further, this submittal satisfies 
several commitments made by the State in a previous PM10 SIP 
submittal. Due to the completion of those commitments, EPA is proposing 
to approve the related rules of the Missoula City-County Air Pollution 
Control Program, as adopted by the Montana Board of Health and 
Environmental Sciences on June 28, 1991 and amended on March 20, 1992 
and November 19, 1993, and submitted by the Governor in letters dated 
August 20, 1991, June 4, 1992, and March 2, 1994. These rules include 
regulations regarding inspections, emergency procedures, minor source 
construction permits, open burning, and wood waste burners. EPA also 
proposes to approve minor revisions to previously approved Missoula 
City-County Air Pollution Control Program Chapters VII and VIII, as 
included in the March 2, 1994 submittal. Further, EPA declines to take 
action on Missoula's minor source operating permit regulations. 
Finally, EPA proposes to disapprove Missoula City-County Air Pollution 
Control Program's Chapter X, Variances.
    In the final rules section of this Federal Register, EPA is acting 
on the State's SIP revisions as a direct final rule without prior 
proposal because the Agency views this as a noncontroversial revision 
amendment and anticipates no adverse comments. A detailed rationale for 
EPA's actions 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 and the direct final rule will become 
effective. If EPA receives adverse comments, 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 action. Any parties 
interested in commenting on this document should do so at this time.

DATES: Comments on this proposed rule must be received in writing by 
January 12, 1995.

ADDRESSES: Written comments on this action should be addressed to Amy 
Platt, 8ART-AP, at the EPA Regional Office listed below. Copies of the 
State's submittal and documents relevant to this proposed rule are 
available for inspection during normal business hours at the following 
locations: Air Programs Branch, Environmental Protection Agency, Region 
VIII, 999 18th Street, Suite 500, Denver, Colorado 80202-2405; and 
Montana Department of Health and Environmental Sciences, Air Quality 
Bureau, Cogswell Building, Helena, Montana 59620-0901.

FOR FURTHER INFORMATION CONTACT: Amy Platt at (303) 293-1769.

SUPPLEMENTARY INFORMATION: See the information provided in the direct 
final rule which is located in the rules section of this Federal 
Register.

    Dated: November 29, 1994.
William P. Yellowtail,
Regional Administrator.
[FR Doc. 94-30513 Filed 12-12-94; 8:45 am]
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