Does Iowa Have Emissions Testing?

No, Iowa does not require emissions testing. The state has never implemented a vehicle emissions testing program.

Iowa's Emissions Testing Policy

Iowa law does not require emissions testing of motor vehicles. According to the Iowa Department of Transportation, the state registers vehicles without requiring emissions inspections.

This policy applies uniformly across the state:

• No counties require emissions testing
• All vehicle types are exempt from emissions testing requirements
• No testing is required for initial registration or annual renewal