Congestion Mitigation and Air Quality (CMAQ) Program

The Congestion Mitigation and Air Quality (CMAQ) Improvement Program is a federal program that funds transportation projects and programs that contribute to attainment or maintenance of the national ambient air quality standards (NAAQS) for ozone, carbon monoxide, and particulate matter. As a non-attainment area for ozone and particulate matter, Connecticut receives Federal CMAQ Improvement Program funds based on the population in the non-attainment areas of the state and the severity of air quality problems. The CMAQ program supports the two goals of improving air quality and relieving congestion. The USDOT CMAQ 2013 program guidance provides more information about CMAQ including eligible and ineligible project categories:

The South Western Region is eligible to use CMAQ funding. The region is part of the New York/Northern New Jersey/Long Island, NY-NJ-CT area that is classified as moderate nonattainment which includes Connecticut’s Fairfield County, Middlesex County, and New Haven County.

AQ Maps

CTDOT CMAQ Program Information
The Connecticut Department of Transportation (CTDOT) has set aside $10 million of Congestion Mitigation Air Quality (CMAQ) funding each year for regional projects. It is CTDOT’s intent to solicit regions every two years for this statewide competitive funding program. WestCOG coordinated the 2015 solicitation for the South Western Region MPO. The next solicitation is scheduled for 2017. However, CTDOT reserves the right to review and revise the solicitation schedule based upon federal funds available, current obligations and anticipated programmed activities. • Generally, the Federal share for CMAQ projects under this program is 80%. Projects that qualify for 100% federal funding will be funded with 100% federal share. • The project sponsor is responsible for the local share for all phases. • Total project cost should be between $200,000 and $3 million. The total cost of the project (federal and local share) includes design, ROW acquisition, construction engineering, and operating cost if applicable. Non-construction projects, such as purchasing equipment, must have a total cost of at least $50,000 ($40,000 federal share). • Cost overruns on selected projects, whether due to poor estimates or unforeseen circumstances, will be the responsibility of the project sponsors. The funds provided by this program are on a cost reimbursement basis. Cost incurred prior to project selection and notice to proceed will not be reimbursed.

CTDOT Reference Guide: Congestion Mitigation Air Quality (CMAQ) Program

If you have questions or would like further information, please contact Kristin Hadjstylianos at