Approval and Promulgation of Implementation Plan; Michigan

ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[MI28-01-6328b-FRL-5015-1]

Approval and Promulgation of Implementation Plan; Michigan

AGENCY: United States Environmental Protection Agency (USEPA).

ACTION: Proposed rule.

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SUMMARY: The United States Environmental Protection Agency (USEPA)

proposes full approval of Michigan's 1990 base year O3 emission

inventory for the Grand Rapids and Muskegon nonattainment areas (NAAs)

submitted as a revision to the Michigan State Implementation Plan for

O3. The inventory was submitted by the State of Michigan to

satisfy a requirement that those States containing O3

nonattainment areas (NAAs) classified as marginal to extreme to submit

inventories of actual O3 season and emissions from all sources in

accordance with USEPA guidance. In the Final Rules Section of this

Federal Register, USEPA is approving the State's revision, 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 the approval is set forth in the

direct final rule. If no adverse comments are received in response to

that direct final rule no further activity is contemplated in relation

to this proposed rule. If USEPA 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final rule will be withdrawn and all public comments received will be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. The

USEPA will not institute a second comment period on this document. Any

parties interested in commenting on this document should do so at this

time.

DATES: Comments on this proposed rule must be received on or before

August 25, 1994.

ADDRESSES: Written comments can be mailed to Carlton T. Nash, Chief,

Regulation Development Section, Air Toxics and Radiation Branch (AT-

18J), United States Environmental Protection Agency, Region 5, Air and

Radiation Division, 77 West Jackson Boulevard, Chicago, Illinois 60604.

Copies of the SIP revision and USEPA's analyses are available for

inspection at the following address: (It is recommended that you

telephone Jeanette Marrero at (312) 886-6543 before visiting the Region

5 Office). United States Environmental Protection Agency, Region 5, Air

and Radiation Division, 77 West Jackson Boulevard, Chicago, Illinois

60604.

FOR FURTHER INFORMATION CONTACT: Jeanette Marrero (312) 886-6543.

SUPPLEMENTARY INFORMATION: See the information provided in the final

rule which is located in the Rules Section of this Federal Register.

Authority: 42 U.S.C. 7401-7642.

Dated: June 14, 1994.

Valdas V. Adamkus,

Regional Administrator.

[FR Doc. 94-17551 Filed 7-25-94; 8:45 am]

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