Maryland Certified Emissions Repair Facilities

  • Maryland Certified Emissions Repair Facilities (CERFs) employ skilled Master Certified Emissions Technicians, who have earned the highest national recognition for expertise in emissions repairs.

  • Motorists should consider that specialized training and experience may be necessary to perform effective emissions repairs, but motorists are not required to have repairs done at a CERF.

  • All CERFs are equipped with the diagnostic equipment needed to repair vehicles that fail the On Board Diagnostics (OBD) Test. Some are also equipped to perform Idle Test repairs.

  • Some CERFs may limit repairs to specific vehicle manufacturers or models.


To find a Certified Emissions Repair Facility, Click Here

   Note: This CERF Lookup application works best with Chrome and Firefox browsers. Click here, if you are using Internet Explorer​.​​