Iowa Clean Air Attainment Program (ICAAP)

Iowa Clean Air Attainment Program (ICAAP)

Funding for highway/street, transit, bicycle/pedestrian or freight projects or programs which help maintain Iowa’s clean air quality by reducing transportation-related emissions. Eligible highway/street projects must be on the federal-aid system, which includes all federal functional class routes except local and rural minor collectors.

Eligible Project Criteria

Eligible projects will fall into one of the following categories:

Those which reduce emissions via traffic flow improvements and provide a direct benefit to air quality by addressing ozone, carbon monoxide or particulate matter PM-2.5 or PM-10 (all of these pollutant emissions must be addressed and a reduction calculation must be provided by the applicant for all types of projects listed).
Those which reduce vehicle miles of travel.
Those which reduce single-occupant vehicle trips.
Other transportation improvement projects to improve air quality or reduce congestion.

Additional Requirements and Information

Minimum $20,000 total project cost.

A local match of at least 20% is required.

Special requirements for highway projects:

Projects must be let by the DOT.
Federal Highway Administration (FHWA) environmental concurrence is required.
Right-of-way activities must comply with applicable federal and state laws.
Plans and specifications must be prepared by an Iowa licensed professional engineer.
If federal-aid dollars are used for a consulting engineer, the Federal-Aid Consultant Selection Process must be used.
DOT design criteria should be used for the appropriate road classification.
Approval by the DOT of plans and specifications is required.
Compliance with regulations regarding the following is required:
– Federal equal employment opportunity.
– Use of disadvantaged business enterprises.
– Occupational Safety and Health Administration provisions
– Federal (Davis-Bacon) Wage rates
Projects along federal-aid routes must complete materials testing, construction inspection and final project acceptance in accordance with DOT procedures – refer to FHWA form 1273:

Special requirements for transit projects:

Capital improvements require adherence to approved transit procurement procedures and equipment specifications.
Project candidates must be part of an approved five-year Capital Improvement Program.
Federally funded projects must comply with requirements regarding:
– Civil rights protections
– Use of disadvantaged business enterprises
– Competitive procurement
– Bus testing
– Pre- and post-procurement audits
– Drug testing and alcohol testing


Iowa Department of Transportation (DOT)

Eligible Applicants

The state, a county or a city may sponsor an application or may co-sponsor for private, non-private organizations and individuals. Transit systems may apply directly.

Application Deadline

October 1

Award Announcement

Applicants are typically made aware of funding decisions within four months of the deadline date.

Contact Person

Jared Smith, Program Manager
Iowa Clean Air Attainment Program
Iowa Department of Transportation
Systems Planning Bureau
800 Lincoln Way
Ames, IA 50010
Phone: (515) 239-1713