Iowa Clean Air Attainment Program (ICAAP) supports Iowa communities and transportation agencies with projects that reduce vehicle emissions, ease congestion, and help meet national air-quality standards.
Carbon Reduction Program (CRP) supports Iowa transportation project sponsors through projects selected by MPOs or programmed by Iowa DOT to cut carbon dioxide emissions from on-road highway sources.
Congestion Mitigation & Air Quality Improvement Program supports cities and tribes with transportation projects that reduce emissions and help meet Clean Air Act requirements.
Transportation Alternatives (TA Set-Aside or TAP) supports Iowa project sponsors with funding for walking, biking, trails, and community improvements to make travel safer and better connected.
Federal Airport Improvement Program supports Iowa general aviation and small commercial service airports with infrastructure, planning, and safety projects to address airport development needs.
Iowa Traffic Engineering Assistance Program (TEAP) supports local governments with traffic studies and roundabout reviews to identify cost-effective improvements to traffic safety and operations.