Air Quality/Conformity


Under the Clean Air Act, the process of ensuring that a region’s transportation planning activities contribute to attainment of the National Ambient Air Quality Standards (NAAQS), or “conform”, is referred to as transportation conformity. All Federally funded projects and regionally significant projects, regardless of funding source, in areas designated by the United States Environmental Protection Agency (USEPA) as air quality non-attainment or maintenance areas must come from a conforming metropolitan transportation plan and transportation improvement program (TIP). The Triangle region is required by 40 CFR 51 and 93 to make a conformity determination on any newly adopted or amended fiscally constrained metropolitan transportation plan and TIP. In addition, the United States Department of Transportation (USDOT), specifically, the Federal Highway Administration (FHWA) and the Federal Transit Administration (FTA), must make a conformity determination on MPO Plans in the Triangle region and the related TIPs in all non-attainment and maintenance areas.

2045 MTP and 2018-2027 TIP

The CAMPO Executive Board approved the 2045 MTP and 2018-27 TIP Conformity Determination, and the related amendments to the 2045 Metropolitan Transportation Plan, and Transportation Improvement Plan on January 16, 2019.

2045 Metropolitan Transportation Plan - Final Roadway Project List
2045 Metropolitan Transportation Plan - Final Roadway Changes

2045 Metropolitan Transportation Plan Conformity Determination Report
Appendix B:  Triangle Ozone SIP Federal Register Notice
Appendix C:  Interagency Consultation, including Pre-Analysis Consensus Plan
Appendix D:  2045 Metropolitan Transportation Plan Project Lists
Appendix E:  Adoption and Endorsement Resolutions and Agency Determinations (to be included in final version)
Appendix F:  Public and Agency Comments and Responses (to be included in final version)
Appendix G:  Emissions Analysis
Appendix H:  VMT and Speeds