Federal Register: PROPOSED RULES Air quality implementation plans; approval and promulgation; various States; air quality planning purposes; designation of areas: [40 CFR Parts 52 and 81]

ENVIRONMENTAL PROTECTION AGENCY

Environmental Protection Agency

CFR Citation: 40 CFR Parts 52 and 81

EPA ID: [EPA-R09-OAR-2006-0580; FRL-8270-4]

NOTICE: PROPOSED RULES

ACTION: Air quality implementation plans; approval and promulgation; various States; air quality planning purposes; designation of areas:

DOCUMENT ACTION: Proposed rule.

SUBJECT CATEGORY: Approval and Promulgation of Air Quality Implementation Plans; Designation of Areas for Air Quality Planning Purposes; Arizona; Miami Sulfur Dioxide State Implementation Plan and Request for Redesignation to Attainment; Correction of Boundary of Miami Sulfur Dioxide Nonattainment Area

DATES: Any comments on this proposal must arrive by February 23, 2007.

DOCUMENT SUMMARY: EPA is proposing to approve the maintenance plan for the Miami Area in Gila County, Arizona, as a revision to the Arizona state implementation plan; to grant the request submitted by the State to redesignate this area from nonattainment to attainment of the national ambient air quality standards for sulfur dioxide (SO2); and to correct the boundary for the Miami SO2 nonattainment area. EPA is proposing this action in accordance with the Clean Air Act.

SUMMARY: Arizona,

SUPPLEMENTAL INFORMATION

In the Rules and Regulations section of this Federal Register, we are taking direct final action to approve the maintenance plan for the Miami SO2 nonattainment area and to approve the State of Arizona's request to redesignate the Miami area from nonattainment to attainment. We are also taking direct final action to correct the boundary of the Miami SO2 nonattainment area. We are taking these actions without prior proposal because we believe these SIP revisions are not controversial. If we receive adverse comments, however, we will publish a timely withdrawal of the direct final rule and address the comments in subsequent action based on this proposed rule.

We do not plan to open a second comment period, so anyone interested in commenting should do so at this time. If we do not receive adverse comments, no further activity is planned. For further information, please see the direct final rule in this Federal Register.

Authority: 42 U.S.C. 7401 et seq.

Dated: December 22, 2006.
Sally Seymour,
Acting Regional Administrator, Region IX.
[FR Doc. E7995 Filed 12307; 8:45 am]
BILLING CODE 656050P

FOR FURTHER INFORMATION CONTACT Ginger Vagenas, EPA Region IX, (415) 9723964, vagenas.ginger@epa.gov.