Except as noted above for Alternative Fuel infrastructure, all CMAQ projects must demonstrate the three primary elements of eligibility: 1) transportation identity; 2) emissions reduction and; 3) location in or benefitting a nonattainment or maintenance area. Generally, projects eligible under the CMAQ program prior to enactment of MAP-21 remain eligible with the new authorization. While project eligibilities are continued, there is some modification with new language placing considerable emphasis on select project types including electric and natural gas vehicle infrastructure and diesel retrofits.
As in past authorizations of the program, projects must be included in a Metropolitan Planning Organization (MPO) transportation plan and transportation improvement program (TIP), or the current Statewide TIP in areas that are not part of an MPO. The MPO plans and programs must also have a transportation conformity determination in place, where applicable.
Eligible Activities Include:
- Acquisition of diesel retrofits, including tailpipe emissions control devices, and the provision of diesel-related outreach activities.
- Intermodal equipment and facility projects that target diesel freight emissions through direct exhaust control from vehicles or indirect emissions reductions through improvements in freight network logistics.
- Alternative fuel projects including participation in vehicle acquisitions, engine conversions, and refueling facilities.
- Establishment or operation of a traffic monitoring, management, and control facility, including the installation of advanced truck stop electrification systems.
- Projects that improve traffic flow, including efforts to provide signal systemization, construct HOV lanes, streamline intersections, add turning lanes, improve transportation systems management and operations that mitigate congestion and improve air quality, and implement ITS and other CMAQ-eligible projects, including efforts to improve incident and emergency response or improve mobility, such as through real time traffic, transit and multimodal traveler information.
- Projects or programs that shift travel demand to nonpeak hours or other transportation modes, increase vehicle occupancy rates, or otherwise reduce demand through initiatives, such as teleworking, ridesharing, pricing, and others.
- Transit investments, including transit vehicle acquisitions and construction of new facilities or improvements to facilities that increase transit capacity. The MAP21 provision on operating assistance (23 USC 149(m)) is being reviewed and guidance interpreting the provision.
- Non-recreational bicycle transportation and pedestrian improvements that provide a reduction in single-occupant vehicle travel.
- Vehicle inspection and maintenance programs.