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.

2023-24 CMAQ Call-For-Projects

2023-24 CMAQ Program Final Interim Program Guidelines

2023-24 CMAQ Improvement Program Application Packet

CMAQ & STBG Workshop

PowerPoint Presentation (pdf)

Zoom recording of meeting (YouTube link)

Program Schedule

The following tentative schedule lists the major milestones for the development and adoption of the 2023-24 CMAQ Call-For-Projects and related FTIP and Air Quality Conformity Determination processes:

Programming subcommittee convenes to review scoring criteria and call information April-May 2023
Guidelines, criteria, and application packet presented to TTC/PAC/Board for approval and initiation of Call-For-Projects June 2023
Application workshop for member agencies July 12, 2023
Regional bid project submittals due Sept. 15, 2023
CMAQ scoring committee convenes December 6, 2023
COG Policy Board approves recommended projects via resolution January 2024
Projects programed into 2023 FTIP March-April 2024
Submittal of FTIP to Caltrans and anticipated FHWA approval of 2023 FTIP/ Conformity Analysis Fall 2024

Emission Calculation Guidelines

All projects funded through the CMAQ program must demonstrate a positive air quality benefit. The link below provides a summary of the methods used to calculate the cost-effectiveness and emission benefits of CMAQ projects.

2023 Guidelines

Emission Calculation Guideline webpage

2021 CMAQ Cost-Effectiveness Policy Documentation
Includes documentation for each FTIP

Previous Awarded Projects

2021 Awarded CMAQ Projects

2019 Awarded CMAQ Projects

2017 Awarded CMAQ Projects

2015 Awarded CMAQ Projects

2013 Awarded CMAQ Projects

2011 Awarded CMAQ Projects

Annual Reports

All agencies receiving CMAQ funds must provide an annual report to Caltrans and the Federal Highways Administration on the funding and emission reductions achieved in that year. This report is available upon request using the contact information below.

For further information on eligible projects, submittal of applications or other questions related to the CMAQ program, please contact Robert Phipps at (559) 233-4148 ext. 210 or