Air Quality

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Articles and Presentations

Articles Presentations Timely Implementation of TCMs (June 2006 Presentation to Fresno COG Committees and Policy Board) Future FTIP Procedures (June 2006 ) Overview of Transportation Conformity (December 2005 Presentation at Caltrans Workshop) Air Quality: Transportation and Mobile Sources (July 2005 Presentation to Measure C Steering Committee) Trucks and Air Quality in the San Joaquin Valley…

cap and trade


Cap-and-trade is a market based regulation that is designed to reduce greenhouse gases (GHGs) from multiple sources.


Congestion Mitigation and Air Quality (CMAQ) Program

The Congestion Mitigation and Air Quality Improvement (CMAQ) program is to fund transportation projects or programs that will contribute to attainment or maintenance of the national ambient air quality standards (NAAQS). Funding can be expended on projects to reduce ozone precursor emissions (including nitrogen oxides (NOx) and volatile organic compounds (VOC), carbon monoxide (CO), and particulate matter (PM) emissions or PM precursor (e.g. NOx) emissions from transportation.



Transportation conformity is a way to ensure that Federal funding and approval are given to those transportation activities that are consistent with air quality goals. It ensures that these transportation activities do not worsen air quality or interfere with the “purpose” of the State Implementation Plan, which is to meet the National Ambient Air Quality Standards (NAAQS). Meeting the NAAQS often requires emissions reductions from mobile sources.


Laws and Regulations

Link to EPA website. The original Clean Air Act was passed in 1963, but our national air pollution control program is actually based on the 1970 version of the law.