Proposed Rules. Proposed rule

Agency: Environmental Protection Agency (EPA)
Action: Proposed rule
Citation: FR Doc. 2012-19565 · EPA-R04-OAR-2012-0402; FRL-9714-8 · 40 CFR 52

Summary

EPA is proposing to approve in part, and disapprove in part, a draft revision to the Mississippi State Implementation Plan (SIP), submitted by the Mississippi Department of Environmental Quality (MDEQ), on July 13, 2012, for parallel processing. This proposal pertains to certain Clean Air Act (CAA) section 128 and section 110(a)(2)(E)(ii) requirements for the 1997 annual and 2006 24-hour fine particulate matter (PM ^2.5 ) National Ambient Air Quality Standards (NAAQS) infrastructure SIP. Section 110(a) of the CAA requires that each state adopt and submit a SIP for the implementation, maintenance, and enforcement of each NAAQS promulgated by EPA, which is commonly referred to as an “infrastructure” SIP. The requirements of section 128 of the CAA are incorporated into the State's infrastructure SIP pursuant to section 110(a)(2)(E)(ii). EPA is proposing to approve the section 110(a)(2)(E)(ii) submission as it relates to the public interest requirements of section 128(a)(1) and the conflict of interest disclosure provisions of section 128(a)(2). EPA is proposing to disapprove Mississippi's section 110(a)(2)(E)(ii) submission as it pertains to compliance with the significant portion of income requirements of section 128(a)(1). The subject of this notice is limited to the July 13, 2012, infrastructure section 110(a)(2)(E)(ii) and substantive section 128 SIP revisions submitted by Mississippi. All other applicable Mississippi infrastructure elements are being addressed in a separate rulemaking.

Dates

Written comments must be received on or before September 10, 2012.