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GAO-16-207R 1 (2015-11-10)

handle is hein.gao/gaobadrpq0001 and id is 1 raw text is: GAO U.S. GOVERNMENT ACCOUNTABILITY OFFICE 441 G St. N.W. Washington, DC 20548 B-327487 November 10, 2015 The Honorable Jim Inhofe Chairman The Honorable Barbara Boxer Ranking Member Committee on Environment and Public Works United States Senate The Honorable Fred Upton Chairman The Honorable Frank Pallone, Jr. Ranking Member Committee on Energy and Commerce House of Representatives Subject: Environmental Protection Agency: National Ambient Air Quality Standards for Ozone Pursuant to section 801 (a)(2)(A) of title 5, United States Code, this is our report on a major rule promulgated by the Environmental Protection Agency (EPA) entitled National Ambient Air Quality Standards for Ozone (RIN: 2060-AP38). We received the rule on October 16, 2015. It was published in the Federal Register as a final rule on October 26, 2015. 80 Fed. Reg. 65,292. The rule has a stated effective date of December 28, 2015. The final rule revises the primary and secondary national ambient air quality standards (NAAQS) for ozone to, in EPA's view, provide requisite protection of public health and welfare, respectively. The rule revises the levels of both standards to 70 parts per billion, and retains their indicators (ozone), forms (fourth-highest daily maximum, averaged across three consecutive years), and averaging times (8 hours). With this rule, EPA is making corresponding revisions in data handling conventions for ozone and changes to the Air Quality Index; revising regulations for the prevention of significant deterioration program to add a transition provision for certain applications; and establishing exceptional events schedules and providing information related to implementing the revised standards. The rule also revises the ozone monitoring seasons, the Federal Reference Method (FRM) for monitoring ozone in the ambient air, Federal Equivalent Method (FEM) analyzer performance requirements, and the Photochemical Assessment Monitoring Stations network. Along with exceptional events schedules related to implementing the revised ozone standards, this rule applies this same schedule approach to other future new or revised NAAQS and removing regulatory language for expired exceptional events deadlines. The rule changes certain procedures and time periods for evaluating potential FRMs and equivalent methods, including making the requirements for nitrogen dioxide consistent with the requirements for ozone, and removing a requirement EPA deems obsolete for the annual submission of Product GAO-1 6-207R

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