Delaware
What is the how often for Delaware?
For Delaware, how often is biennial, requiring vehicles to pass safety and emission inspections once every other year; vehicles covered / exempt is The first seven model years are exempt from emissions testing; program / authority is Inspection and Maintenance program, verified against its source on 2026-08-19.
The inspection requirement is biennial, requiring vehicles to pass safety and emission inspections once every other year. Inspections are performed at no charge to the vehicle owner. The first seven model years are exempt from emissions testing.
— dnrec.delaware.gov, retrieved 2026-08-19
- State
- Delaware our reading
- How often
- biennial, requiring vehicles to pass safety and emission inspections once every other year verified
- Vehicles covered / exempt
- The first seven model years are exempt from emissions testing verified
- Program / authority
- Inspection and Maintenance program
- Recent or pending change
- On Dec. 14, 2022, DNREC Secretary Shawn M. Garvin signed three Secretary’s Orders approving amendments to the regulations and upgrading the program in Sussex County to match the program in Kent and New Castle Counties also on this page
Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.
The same source also states
Upgrading the Inspection and Maintenance Program On Dec. 14, 2022, DNREC Secretary Shawn M. Garvin signed three Secretary’s Orders approving amendments to the regulations and upgrading the program in Sussex County to match the program in Kent and New Castle Counties.
— dnrec.delaware.gov, retrieved 2026-08-19
Source
- dnrec.delaware.govhttps://dnrec.delaware.gov/air/mobile-sources/inspection-maintenance/