Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality Planning Purposes; Michigan; Extension of Comment Period

ENVIRONMENTAL PROTECTION AGENCY

40 CFR Parts 52 and 81

[MI21-03-6635; AMS-FRL-5067-1]

Approval and Promulgation of Implementation Plans and Designation

of Areas for Air Quality Planning Purposes; Michigan; Extension of

Comment Period

AGENCY: Environmental Protection Agency (EPA).

ACTION: Notice of proposed rulemaking; extension of the comment period.

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SUMMARY: The EPA is extending the comment period for a proposed action

published on July 21, 1994 (59 FR 37190) pertaining to the Detroit-Ann

Arbor moderate ozone nonattainment area. On July 21, 1994, the EPA

proposed approval of requested revisions to the Michigan State

Implementation Plan (SIP) for attainment and maintenance of the

National Ambient Air Quality Standard for ozone. The revisions were the

1990 base year emission inventory, basic vehicle inspection and

maintenance, and redesignation of the Detroit-Ann Arbor area to

attainment for ozone and corresponding section 175A maintenance plan.

Portions of the document pertaining to the redesignation request and

section 175A maintenance plan were inadvertently excluded from the

document. Specifically, the last portion of section C.III.5.B.

Demonstration of Maintenance--Projected Inventories and the first

portion of section C.III.5.C. Verification of Continued Attainment were

excluded. Elsewhere in this Federal Register a correction notice is

being published for these two sections. Consequently, the EPA is

extending the comment period for 15 days on the redesignation and

corresponding section 175A maintenance plan.

DATES: Comments on the July 21, 1994 (59 FR 37190) proposed action

pertaining to the redesignation and corresponding section 175A

maintenance plan and today's correction document must be received in

writing by September 23, 1994.

FOR FURTHER INFORMATION CONTACT: Jacqueline Nwia, Environmental

Engineer, Regulation Development Section, Air Toxics and Radiation

Branch (AT-18J), United States Environmental Protection Agency, Region

5, 77 West Jackson Boulevard, Chicago, Illinois 60604, (312) 886-6081.

SUPPLEMENTARY INFORMATION:

List of Subjects

40 CFR Part 52

Environmental protection, Air pollution control, Nitrogen oxides,

Ozone, Volatile organic compounds, Hydrocarbons, Intergovernmental

relations, Motor vehicle pollution, Reporting and recordkeeping

requirements.

40 CFR Part 81

Environmental protection, Air pollution control, National parks,

Wilderness areas.

Authority: 42 U.S.C. 7401-7671q.

Dated: August 26, 1994.

Valdas V. Adamkus,

Regional Administrator.

[FR Doc. 94-22014 Filed 9-7-94; 8:45 am]

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