Congestion Mitigation & Air Quality

The purpose of the Congestion Mitigation and Air Quality (CMAQ) Program is to provide a flexible funding source to state and local governments for transportation projects and programs to help meet the requirements of the Clean Air Act. The funding is available to air quality nonattainment areas and maintenance areas that do not meet the National Ambient Air Quality Standards for ozone, carbon monoxide, and particulate matter (both PM10 and PM2.5). The El Dorado County portion of the Lake Tahoe Region is eligible for this funding.


Each year Caltrans posts the CMAQ Estimated Apportionment for distribution on their website. The estimates include the current fiscal year’s revised estimate and the future 4-year period regional apportionments. These estimates are used to update the programming of the current Federal Transportation Improvement Program (FTIP) and for development of future FTIPs. Every two years, a Call for Projects is announced for the future two years of funding to be programmed in the developing FTIP.

Project and Programs

Projects and programs eligible for CMAQ funds must come from a conforming Regional Transportation Plan and Federal Transportation Improvement Program that is developed and administered by the TRPA/TMPO. Projects must be consistent with conformity provisions contained in section 176(C) of the Clean Air Act. CMAQ projects must be a transportation project, must generate an emissions reduction, and must be located in or benefit a nonattainment or maintenance area.


Local jurisdictions and transit operators located within the El Dorado County portion of the Tahoe Region are eligible to apply.

Application Materials

CMAQ Project Awards

CMAQ Awarded
There were twelve projects awarded CMAQ funds in April 2016. The funding application process is now closed.
Click here to view awards