Congestion Mitigation Air Quality (CMAQ)
The Congestion Mitigation and Air Quality (CMAQ) Improvement Program was created in 1991 under the Intermodal Surface Transportation Efficiency Act (ISTEA) to support surface transportation projects and other related efforts that contribute air quality improvements and provide congestion relief. The Carbon Reduction Program (CRP) was created under the Infrastructure Investment and Jobs Act (IIJA) and designed to provide federal funding to projects that decrease transportation related carbon emissions that result from on-road, and highway sources.
Eligible projects for CMAQ include but are not limited to:
- Transit Vehicle Engine Retrofits and Vehicle Replacements
- Street Sweeper and School Bus Engine Retrofits and Vehicle Replacements
- Transit Service Improvements
- Traffic Flow Improvements
- Bicycle and Pedestrian Improvements
Eligible projects for CRP include but are not limited to:
- Efforts to reduce the environmental and community impacts of freight movement
- Renewable energy generation facilities, such as solar arrays and wind turbines
- Micromobility and electric bike projects, including charging infrastructure
- Biologic carbon sequestration practices along highway ROW to capture and store CO2
- See full list of projects eligible for CRP funding in the Related Documents section below
2023 Combined CRP/CMAQ Call for Projects
On April 7, 2023, SJCOG solicited a call for projects for the 2023 Combined CRP/CMAQ Program. Approximately $22 million is available for eligible projects in San Joaquin County. Applications were due June 7, 2023.
Staff received fifteen applications that totaled approximately $36.3 million. After the review process, staff selected six projects for programming totaling almost $22 million. The unfunded projects will be placed on a CMAQ/CRP contingency list, expiring at the start of the next CMAQ call for projects. On August 24, 2023, the SJCOG Board approved staff's recommendation to fund the six projects and place the unfunded projects on a contingency list.
Note: Based on project scores, the City of Stockton’s Combined Roundabouts Project would receive partial funding. At the scoring committee’s direction, SJCOG staff has worked with the City of Stockton to ensure that the partial funding award can be used to deliver a scaled version of the project that maintains cost effectiveness – which would be to deliver the Swain Road & Morgan Place roundabout project first.
- 2023 Combined CRP/CMAQ Application Form
- 2023 Combined CRP/CMAQ Program Guidelines
- CRP Eligible Projects
- CMAQ Federal Guidance
- Air Resources Board (ARB) Air Quality Cost Effectiveness Calculation Methodology
- Cost Effectiveness Calculation for EV Charging
- Air Resources Board 2013 Emission Factor Tables
- CMAQ Default Values for Signals
- Air Quality Exempt Codes
- SJCOG Roundabout Quantification Tool