Iowa Clean Air Attainment Program
The purpose of Iowa’s Clean Air Attainment Program (ICAAP) is to help finance transportation projects and programs that improve air quality.
Specifically, the intent of ICAAP funding is to attain or maintain the national ambient air quality standards (NAAQS) of the 1990 Clean Air Act Amendments (CAAA) with a focus on volatile organic compounds (VOC) and nitrogen oxides (NOx), carbon monoxide (CO) and, under certain conditions, particulate matter (PM-2.5 and PM-10). VOC and NOx contribute to ground-level ozone (O3) formation.
Each year, the MPO Policy Committee reviews and approves the ICAAP applications of MPO member governments. Then, the Iowa Department of Transportation awards ICAAP funds to projects and programs with the highest potential for reducing transportation-related congestion and air pollution, thereby maintaining Iowa’s clean air quality.
Iowa Clean Air Attainment Program Schedule
August 29, 2025 – Pre-Applications due to the MPO.
September 2025 – Pre-Applications are presented to Technical, Executive, and Policy committees for review & approval and ICAAP resolutions are forwarded to project sponsor to include in the final application to the Iowa Department of Transportation.
October 1, 2025 – Project sponsors submit their applications to the Iowa Department of Transportation (sponsors are required to send an electronic copy of final application to the MPO staff).
FFY 2027 ICAAP Pre-Application (online submittal only)
Pre-Application
Pre-Application Question
FFY 2027 ICAAP Application
Application
Application Handbook
Additional Resources