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EPA/AR | RIN: 2060-AI43 | Publication ID: Fall 2010 |
Title: Review of the National Ambient Air Quality Standards for Carbon Monoxide | |
Abstract: Under the Clean Air Act, EPA is required to review and, if appropriate, revise the air quality criteria for the primary (health-based) and secondary (welfare-based) national ambient air quality standards (NAAQS) every 5 years. The last CO NAAQS review occurred in 1994 with a decision by the Administrator not to revise the existing standards. The current review which initiated in September 2007 includes the preparation of an Integrated Science Assessment, Risk/Exposure Assessment, and a Policy Assessment Document by EPA, with opportunities for review by EPA's Clean Air Scientific Advisory Committee and the public. These documents inform the Administrator's decision as to whether to retain or revise the standards. | |
Agency: Environmental Protection Agency(EPA) | Priority: Economically Significant |
RIN Status: Previously published in the Unified Agenda | Agenda Stage of Rulemaking: Proposed Rule Stage |
Major: Yes | Unfunded Mandates: No |
CFR Citation: 40 CFR 50 | |
Legal Authority: 42 USC 7408 42 USC 7409 |
Legal Deadline:
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Statement of Need: As established in the Clean Air Act, the national ambient air quality standards for carbon monoxide are to be reviewed every 5 years. |
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Summary of the Legal Basis: Section 109 of the Clean Air Act (42 U.S.C. 7409) directs the Administrator to propose and promulgate "primary" and "secondary" national ambient air quality standards for pollutants identified under section 108 (the "criteria" pollutants). The "primary" standards are established for the protection of public health, while "secondary" standards are to protect against public welfare. |
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Alternatives: The main alternatives for the Administrator's decision on the review of the national ambient air quality standards for CO are whether to retain or revise the existing standards. |
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Anticipated Costs and Benefits: The Clean Air Act makes clear that the economic and technical feasibility of attaining standards are not to be considered in setting or revising the NAAQS, although such factors may be considered in the development of State plans to implement the standards. Accordingly, the Agency prepares cost and benefit information in order to provide States information that may be useful in considering different implementation strategies for meeting proposed or final standards. Cost and benefit information is not developed to support a NAAQS rulemaking until sufficient policy and scientific information is available to narrow potential options for the form and level associated with any potential revisions to the standard. Therefore, work on developing the plan for conducting the cost and benefit analysis will generally start 1 1/2 to 2 years following the start of a NAAQS review. |
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Risks: During the course of this review, risk assessments will be conducted to evaluate health risks associated with retention or revision of the CO standards. |
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Timetable:
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Additional Information: EPA Docket information: EPA-HQ-OAR-2008-0015 | |
Regulatory Flexibility Analysis Required: No | Government Levels Affected: Federal, Local, State, Tribal |
Small Entities Affected: No | Federalism: No |
Included in the Regulatory Plan: Yes | |
RIN Information URL: http://www.epa.gov/ttn/naaqs/standards/co/s_co_index.html | |
RIN Data Printed in the FR: No | |
Agency Contact: Ines Pagan Environmental Protection Agency Air and Radiation C504-06, RTP, NC 27711 Phone:919 541-5469 Email: pagan.ines@epa.gov Deirdre Murphy Environmental Protection Agency Air and Radiation C539-02, Research Triangle Park, NC 27709 Phone:919 541-0729 Fax:919 541-0840 Email: murphy.deirdre@epa.gov |