California Department of Transportation

Congestion Mitigation and Air Quality Improvement Program (CMAQ)

Program Description

The purpose of the CMAQ program is to fund transportation projects or programs that will contribute to attainment or maintenance of the National Ambient Air Quality Standards for ozone, carbon monoxide, and particulate matter.  The CMAQ program was reauthorized under the Transportation Equity Act for the 21st Century in 1998, the Safe, Accountable, Flexible, and Efficient Transportation Equity Act: A Legacy for Users in 2005, and most recently, the Moving Ahead for Progress in the 21st Century Act in July, 2012.

MAP-21 provides approximately $455 million of CMAQ funds annually to California. These funds are distributed to Metropolitan Planning Organizations and Regional Transportation Planning Agencies in federally designated air quality nonattainment and maintenance areas within the state in accordance with the formula set forth in Section 182.7 of the Streets and Highways Code.

For more information about the CMAQ program and project eligibility, please contact Lima Huy or Dennis Jacobs.
For more information about CMAQ apportionments, please contact Lilibeth Green.

Program Summary


Tools and Resources


Other Helpful Links