Delaware's Car Checks Get EPA Green Light for Cleaner Air
Published Date: 9/25/2025
Rule
Summary
The EPA just gave a thumbs-up to Delaware’s plan to check car emissions in New Castle County. This means cars there will get regular emissions tests to help clean up the air and meet national ozone standards. Drivers and local officials should get ready for these changes, which aim to keep our air fresh without extra costs right now.
Analyzed Economic Effects
2 provisions identified: 1 benefits, 1 costs, 0 mixed.
Program aims to meet ozone air quality standard
The EPA approved Delaware's SIP revision for a Basic vehicle I/M program for the Delaware portion of the Philadelphia-Wilmington-Atlantic City nonattainment area (New Castle County) to help meet the 2015 8-hour ozone national ambient air quality standards. The program is intended to reduce vehicle emissions in that area to improve compliance with the 2015 ozone NAAQS.
New Castle County vehicle emissions testing
If you drive in New Castle County (Delaware), Delaware has enacted a Basic vehicle emissions inspection and maintenance (I/M) program and the EPA approved the State Implementation Plan revision that puts that program into place. This means vehicles in New Castle County will be covered by regular emissions inspections under the approved I/M program.
Your PRIA Score
Personalized for You
How does this regulation affect your finances?
Sign up for a PRIA Policy Scan to see your personalized alignment score for this federal register document and every other regulation we track. We analyze your financial profile against policy provisions to show you exactly what matters to your wallet.
Key Dates
Department and Agencies
Take It Personal
Get Your Personalized Policy View
Start a Free Government Policy Watch to see how policy affects your household, then upgrade to PRIA Full Coverage for year-round monitoring.
Already have an account? Sign in