Availability of Additional Information Related to the Review of the National Ambient Air Quality Standards for Ozone

Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Environmental Protection Agency 40 CFR Part 50 [EPA-HQ-OAR-2005-0172; FRL-8513-1] AGENCY: Environmental Protection Agency (EPA). ACTION: Notice of data availability. SUMMARY: The EPA is providing notice that it has placed in the docket for the review of the national ambient air quality standards (NAAQS) for ozone (O 3 ) (Docket No. EPA-HQ-OAR-2005-0172) additional information relevant to the rulemaking proposing revisions to those standards. See 72 FR 37818 , July 11, 2007. Specifically, this notice announces the availability of a memorandum from Abt Associates, Inc. dated November 27, 2007. The subject of the memo is: “Additional Tables: Non-Accidental Mortality and Lung Function Responses Associated with O 3 Concentrations that Just Meet the Current and Alternative 8-Hour Daily Maximum Standards—Totals and Portions Attributable to O 3 Within 0.1 ppm Ranges, Based on 2002 and 2004 Air Quality Data.” The docket number for this memo is EPA-HQ-OAR-2005-0172-6942. DATES: The memorandum was placed in the Ozone NAAQS docket on December 17, 2007. FOR FURTHER INFORMATION CONTACT: Mr. Harvey Richmond, Office of Air Quality Planning and Standards (C-504-06), U.S. Environmental Protection Agency, Research Triangle Park, NC 27711: telephone: 919-541-5271; e-mail: richmond.harvey@epa.gov . SUPPLEMENTARY INFORMATION: A. Background On July 11, 2007, EPA published a proposed rule to make revisions to the primary and secondary NAAQS for ozone to provide requisite protection…