Approval and Promulgation of Air Quality Implementation Plans; Montana; 1990 Base Year Carbon Monoxide Emission Inventories for Montana

ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[MT-001-0002b, MT-001-0003b; FRL-5934-4]

Approval and Promulgation of Air Quality Implementation Plans;

Montana; 1990 Base Year Carbon Monoxide Emission Inventories for

Montana

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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SUMMARY: EPA is proposing approval of the 1990 base year carbon

monoxide (CO) emission inventories for Missoula, Billings, and Great

Falls that were submitted by the State to satisfy certain requirements

of the Clean Air Act (CAA), as amended in 1990. In the Final Rules

Section of this Federal Register, EPA is approving the State's State

Implementation Plan (SIP) revision as a direct final rule without prior

proposal because the Agency views this as a noncontroversial revision

and anticipates no adverse comments. A detailed rationale for the

approval 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comments, the direct final rule will be withdrawn and all public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 action should

do so at this time.

DATES: Comments on this proposed rule must be received in writing by

January 14, 1998.

ADDRESSES: Written comments should be addressed to: Richard R. Long,

Director, Air Program (8P2-A), United States Environmental Protection

[[Page 65635]]

Agency, Region 8, 999 18th Street, suite 500, Denver, Colorado 80202-

2466.

Copies of the documents relevant to this action are available for

public inspection between 8:00 a.m. and 4:00 p.m., Monday through

Friday at the following office: United States Environmental Protection

Agency, Region 8, Air Program, 999 18th Street, suite 500, Denver,

Colorado 80202-2466.

FOR FURTHER INFORMATION CONTACT: Tim Russ, Air Program (8P2-A), United

States Environmental Protection Agency, Region 8, 999 18th Street,

Suite 500, Denver, Colorado 80202-2466, ph. (303) 312-6479.

SUPPLEMENTARY INFORMATION: See the information provided in the Direct

Final action which is located in the Rules Section of this Federal

Register.

Dated: October 3, 1997.

William P. Yellowtail,

Regional Administrator, Region VIII.

[FR Doc. 97-32645 Filed 12-12-97; 8:45 am]

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