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

AZ ID: [AZ 116-0059b; FRL-7652-1]

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 Implementation Plans and Designation of Areas for Air Quality Planning Purposes; Arizona

DATES: Comments on this proposal must be received by May 26, 2004.

DOCUMENT SUMMARY: EPA is proposing to approve the maintenance plan for the Morenci area in Arizona and grant the request submitted by the State to redesignate this area from nonattainment to attainment for the National Ambient Air Quality Standards for sulfur dioxide (SO2).

SUMMARY: Arizona,

SUPPLEMENTAL INFORMATION

In the Rules and Regulations section of this Federal Register, we are approving the maintenance plan for the Morenci SO2 nonattainment area. We are also approving the State of Arizona's request to redesignate the Morenci area from nonattainment to attainment for the primary SO2 NAAQS. We are taking these actions without prior proposal because we believe that the revision and request 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 action.

Dated: March 30, 2004.
Laura Yoshii,
Acting Regional Administrator, Region IX.
[FR Doc. 049278 Filed 42304; 8:45 am]
BILLING CODE 656050P

FOR FURTHER INFORMATION CONTACT Wienke Tax, Air Planning Office (AIR- 2), Air Division, U.S. EPA, Region 9, telephone: (520) 6221622. E mail: tax.wienke@epa.gov, or check http://www.epa.gov/region09/air. [[Page 22472]]