Congestion Mitigation and Air Quality Improvement Program (CMAQ) supports Michigan transportation authorities and agencies with transit and other projects that improve air quality in designated areas.
Funder: Michigan Department of Transportation
Due Dates (Anticipated): October 2026 (application deadline)
Funding Amounts: Population-formula allocation; up to three years of operating and maintenance expenses for eligible routes
Summary: CMAQ supports transportation projects that improve air quality in designated nonattainment or maintenance areas.
Key Information: Applicants must be authorities or governmental agencies eligible under Michigan Act 51 and located in federally defined nonattainment areas.
The Michigan Department of Transportation (MDOT) presents the Congestion Mitigation and Air Quality Improvement Program (CMAQ) to fund transportation projects in areas that do not meet National Ambient Air Quality Standards for ozone, carbon monoxide, or particulate matter. Funding is allocated by population formula within designated nonattainment or maintenance areas, connecting transportation investment with cleaner air under the Clean Air Act.
Eligible transit work includes facilities and vehicles that expand service, bus replacement, and operating and maintenance expenses for new or expanded routes. The program also supports alternative fueling facilities, rideshare administration and marketing, ozone action, and transit fare subsidies. CMAQ is part of a flexible federal highway funding framework that allows some highway funds to be transferred to transit projects and vice versa.