Environmental Protection Agency July 30, 2012 – Federal Register Recent Federal Regulation Documents

EPA is proposing to approve a State Implementation Plan (SIP) revision submitted by the State of Arizona on October 14, 2009 and to determine that the existing SIP is adequate to address the requirements of section 110(a)(2)(D)(i)(I) of the Clean Air Act (CAA) for the 2006 National Ambient Air Quality Standard (NAAQS or standard) for fine particulate matter (PM2.5). Section 110(a)(2)(D)(i)(I) of the CAA requires that each SIP contain adequate provisions to prohibit air emissions from adversely affecting air quality in other states through interstate transport. EPA is proposing to approve the SIP revision submitted by Arizona and to conclude that additional control measures in Arizona are not necessary under CAA section 110(a)(2)(D)(i)(I) because emissions from Arizona sources do not contribute significantly to nonattainment or interfere with maintenance of the 2006 24-hour PM2.5 NAAQS in any other state. We are taking comments on this proposal and plan to follow with a final action.

This action promulgates Method 16C for measuring total reduced sulfur (TRS) emissions from stationary sources. Method 16C offers the advantages of real-time data collection and uses procedures that are already in use for measuring other pollutants. Method 16C will be a testing option that is used at the discretion of the tester.

The U.S. Environmental Protection Agency (EPA) Office of the Science Advisor (OSA) announces a 60-day public comment period for the external review draft of ``A Framework for Human Health Risk Assessment to Inform Decision Making.'' This document was developed as part of an agencywide program by the EPA Risk Assessment Forum. The EPA is releasing this draft document solely for the purpose of seeking public comment prior to external peer review. The document will undergo independent peer review during an expert peer review meeting that will be convened, organized, and conducted by a contractor of the EPA in 2012. The date of the external peer review meeting will be announced in a subsequent Federal Register notice. All comments received by the docket closing date September 28, 2012, will be shared with the external peer review panel for their consideration. Comments received after the close of the comment period may be considered by the agency when it finalizes the document. This document has not been formally disseminated by the EPA. This draft document does not represent and should not be construed to represent the EPA policy, viewpoint, or determination. Members of the public may obtain the external review draft from www.regulations.gov; or www.epa.gov/raf/FrameworkHHRA.htm or from Julie Fitzpatrick via the contact information below. This draft document describes a framework for conducting human health risk assessments that are responsive to the needs of decision making processes at the EPA. The document was developed by the EPA, to provide guidance to scientists and decision makers in the EPA.

EPA is proposing to determine that the Ogden City nonattainment area in Utah is currently attaining the National Ambient Air Quality Standard (NAAQS) for particulate matter with an aerodynamic diameter of less than or equal to a nominal ten micrometers (PM10) based on certified, quality-assured ambient air monitoring data for the years 2009 through 2011. The State of Utah submitted a letter dated March 30, 2000, requesting EPA to make a clean data determination for the nonattainment area of Ogden City. Based on our proposed determination that the Ogden City nonattainment area is currently attaining the PM10 NAAQS, EPA is also proposing to determine that Utah's obligation to make submissions to meet certain Clean Air Act (CAA) requirements related to attainment of the NAAQS is not applicable for as long as the Ogden City nonattainment area continues to attain the NAAQS. This action is being taken under the CAA.

EPA is taking final action to approve in part, and disapprove in part, the State Implementation Plan (SIP) submissions, submitted by the State of Florida, through the Florida Department of Environmental Protection (FDEP) on December 13, 2007, and supplemented on April 18, 2008 and May 24, 2012, to demonstrate that the State meets the requirements of sections 110(a)(1) and (2) of the Clean Air Act (CAA or Act) for the 1997 8-hour ozone national ambient air quality standards (NAAQS). 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. FDEP certified that the Florida SIP contains provisions that ensure the 1997 8-hour ozone NAAQS are implemented, enforced, and maintained in Florida (hereafter referred to as ``infrastructure submission''). EPA is now taking three related actions on FDEP's infrastructure submissions for Florida. First, EPA is taking final action to disapprove in part portions of sections 110(a)(2)(C) and 110(a)(2)(J) of the December 13, 2007, submittal as it relates to the regulation of greenhouse gas (GHG) emissions. Second, EPA is taking final action to approve FDEP's May 24, 2012, submission, which addresses the substantive requirements of section 128 relating to State board requirements as applicable to the infrastructure SIP pursuant to section 110(a)(2)(E)(ii), and the substantive requirements of section 110(a)(2)(G), which relates to the authority to implement emergency powers under section 303 of the CAA. Third, and with the exception of the aforementioned portions of sections 110(a)(2)(C) and (J), EPA is finalizing its determination that Florida's infrastructure submission, provided to EPA on December 13, 2007, supplemented on April 18, 2008, addresses all other required infrastructure elements for the 1997 8- hour ozone NAAQS.