Air Quality
Legislation:
Transportation Equity Act of the 21st Century — Sections 1110, 6101
Clean Air Act
42 U.S.C. 7400
23 U.S.C. 109(j)
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23 U.S.C. 149
23 U.S.C. 102(a)
23 U.S.C. 110(c) |
Regulations:
FHWA Policy and Guidance:
- Transportation Conformity Reference Guide (May 2000)
- Circuit Court Decision of March 2, 1999
- Supplemental Guidance for the Implementation of the Circuit Court Decision Affecting Transportation Conformity, May 7, 1999
(PDF File Size 318 K)
- Conformity Guidance on Implementation of March 2,1999 Conformity Court Decision, May 14, 1999
(PDF File Size 756 K)
- Guidance on the Congestion Mitigation and Air Quality Improvement (CMAQ) Program Under the Transportation Equity Act for the 21st Century (TEA-21), April 28, 1999
(PDF File Size 2727 K)
- Division's Role in Implementation of the CAA Transportation Conformity Requirements, (July 1, 1998)
(PDF File Size 129 K)
- Timely Implementation of Transportation Control Measures (TCMs), (February 20, 1998)
(PDF File Size 124 K)
- Transportation Conformity Pilot Program: Request for Expedite Review of Conformity SIPS for the Pilot Program, (November 13,1996)
(PDF File Size 111 K)
- Transportation Conformity: Regional Analysis of PM-10 Emission from Highway and Transit Project Construction, (October 28, 1996)
(PDF File Size 289 K)
- Guidance on Implementation of the Recent Employee Commute Options Legislation, (April 23, 1996)
(PDF File Size 386 K)
- Exemption Criteria During Highway Sanctions (March 11,1996)
(PDF File Size 558 K)
- Guidance Update on the Congestion Mitigation and Air Quality Improvement (CMAQ) Program, (March 7,1996)
(PDF File Size 2641 K)
- Distribution of Particulate Matter Guidance Document, (October 10, 1995)
(PDF File Size 1140 K)
- Transportation Conformity: Assumptions Regarding Implementation of Committed Measures, (April 5, 1995)
(PDF File Size 213 K)
- Section 182 (f) Nitrogen Oxides Exemptions-- Revised Process and Criteria, (February 8,1995)
(PDF File Size 117 K)
- Analyzing Exempt Projects in the Conformity Process, (February 3, 1995)
(PDF File Size 144 K)
- Conformity and Nitrogen Oxides, (May 17, 1994)
(PDF File Size 1279 K)
- Conformity and Nitrogen Oxides, (March 10, 1994)
(PDF File Size 1066 K)
- Conformity and Planning Issues Related to the IVHS Program, (May 14, 1993)
(PDF File Size 258 K)
- Design Concept and Scope of Projects in Planning and Environmental and Planning, (January 31, 1992)
(PDF File Size 208 K)
- Design Concept and Scope of Project in Planning and Environmental Document, (September 4, 1991)
(PDF File Size 859 K)
- Revised Guidelines for the Control of Carbon Monoxide (CO) Level in Tunnels, (March 31, 1989)
(PDF File Size 103 K)
- Discussion Paper on the Appropriate Level of Highway Air Quality Analysis for a CE, EA/FONSI, and EIS, (April 7, 1986)
(PDF File Size 897 K)
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