Authorized Maryland State Inspection station
Maryland State Inspection in Rockville, with the repair shop attached
Buying, selling or titling a used car in Maryland? It needs a safety inspection certificate from a station licensed by the Maryland State Police. Karnon Automotive is one, and because it is a full repair shop, anything that fails can be fixed and re-inspected right here. Call to book, or walk in and wait your turn.
Four numbers worth knowing
Straight from the Maryland Motor Vehicle Administration, so there are no surprises at the counter.
Maryland law requires the inspection before a used vehicle is sold, titled or transferred in the state, and a new resident has to title an out-of-state car within 60 days of moving. Cannot get it inspected before you title it? The MVA’s temporary inspection waiver (form VR-129) buys a single 30-day temporary registration that lets you legally drive the car to an inspection station.
Safety inspection vs. VEIP emissions test
People arrive expecting one shop to do both. In Maryland they are run by different people in different places, and knowing which one you need saves a wasted trip.
Maryland Safety Inspection
Done here- Required before a vehicle is sold, titled or transferred in Maryland
- Performed by private stations licensed by the Maryland State Police, and Karnon Automotive is one
- A one-time inspection per transfer, not a recurring test
- Covers the car’s safety systems: brakes, steering, suspension, tires, lights, glass, exhaust and more, including a road test
- Certificate valid 90 days; result sent to the MVA electronically
VEIP emissions test
State-run, not at repair shops- A recurring emissions test for most vehicles registered in covered counties, Montgomery County included, on a two-year cycle
- Done only at Maryland VEIP stations or self-service kiosks. The closest station to Rockville is at 15910 Chieftain Ave, Derwood (there is a second in Silver Spring and a 24-hour kiosk at the Gaithersburg MVA)
- New vehicles are exempt for the first 72 months after their model year while under original ownership; the MVA notifies you when a test is due. Fee set by the state: $30 at a staffed station, $26 at a kiosk
- Fail it, and the fix is a repair-shop job: check-engine faults and emissions-system repairs are what our diagnostics page is about. The first retest is free
- A vehicle that still cannot pass after at least $450 of qualifying emissions repairs may be eligible for a repair waiver covering that two-year cycle
A real inspection, not a rubber stamp
The Maryland inspection is thorough by design: the state’s standards run to dozens of items, and they include a road test of the steering, suspension, braking and handling, not just a look under the hood. An ASE Master Certified technician works through the whole list and explains any failure to you in English, Spanish or French.
- BrakesPads, rotors, drums, lines, fluid, parking brake, and how it stops on the road.
- Steering & suspensionTie rods, ball joints, control arms, shocks and struts, play in the wheel.
- Tires & wheelsTread depth, damage, matching sizes, wheel condition.
- Lights & electricalHeadlights, brake lights, turn signals, horn, wipers and washers.
- Glass & visibilityWindshield condition, mirrors, and window tint within the legal limit.
- Exhaust & fuel systemLeaks, mounts, required emissions equipment present, fuel lines and cap.
- Body & safety equipmentSeat belts, hood latch, doors, bumpers, and anything else on the state’s list.
- Road testThe state requires it; the technician drives the car to check how it actually behaves.
Three ways people arrive
Buying a used car
The seller may hand you a certificate; if it is older than 90 days, or there is none, the car needs an inspection before the MVA will title it in your name. Bring it in. If you are still deciding, ask about looking the car over first. It is worth knowing what will fail before you agree on a price.
Selling a car
Getting the inspection done before you list the car removes the buyer’s biggest excuse to haggle. Anything that fails can be repaired here and re-inspected, so you hand over a clean certificate and a car that is actually right.
Moving to Maryland
A new resident has 60 days to title and register a car from another state, and that needs a Maryland Safety Inspection certificate. Get it done here, and the result reaches the MVA electronically before you get to the counter.
How an inspection visit goes
Call to book, or walk in
Call (301) 444-4410 to book; it is faster. Walk-ins are welcome during business hours if you have time to wait your turn. It helps if the lights, wipers and horn work and the tires are not bald. Those are the usual small fails.
The full inspection
Everything on the state list, plus the road test. If it passes, the result goes to the MVA electronically and you get your certificate.
If something fails
You see the list and hear a price for fixing it, up front. Say yes and it is repaired here; say no and you still have 30 days to come back.
Reinspection
Only the failed items are rechecked. Because the repair and the reinspection happen under one roof, the reinspection can be done as soon as the repair is finished.
One block from the Rockville Metro, so if the car needs to stay for repairs you can ride home and come back. Directions and hours.
Inspection questions from the counter
When does a car in Maryland need a safety inspection?
Maryland law requires a vehicle to pass a Maryland Safety Inspection and receive a certificate before it can be sold, titled or transferred in the state. In practice that means a used car changing hands, and most vehicles being titled in Maryland for the first time. A certificate is valid for 90 days from the date it is issued.
Can any repair shop do it?
No. The inspection has to be done at a station licensed by the Maryland State Police, and only some repair shops are among the roughly 1,600 licensed stations in the state. Karnon Automotive is one, and the result goes to the MVA electronically when the inspection is done.
What happens if the car fails?
You get a list of exactly what failed. Fix those items and bring the car back to the same station within 30 days and 1,000 miles, and only the failed items are rechecked. Go past either limit, or take it to a different station, and the whole inspection has to be done again. Because this is also a full repair shop, the fix and the reinspection can happen here without a second trip.
Does a brand-new car need one? What about a car I gave to my kid?
Generally no. A new vehicle sold by a franchised dealer does not need a safety inspection, and neither does a transfer between spouses or between a parent and child, or removing a co-owner from a title. A new Maryland resident bringing a car from another state does need one to title and register it. When in doubt, call and describe the situation.
How much does it cost, and how long does it take?
Maryland does not set a statewide price; each licensed station sets its own approved fee, which has to be posted in the shop. Ask when you call or walk in. Plan on leaving the car for a couple of hours: the inspection includes a road test. Call ahead to book; it is faster. Walk-ins are welcome if you have time to wait your turn.
Is this the same as the emissions (VEIP) test?
No. The safety inspection is done by licensed private stations like this one when a vehicle changes hands. The VEIP emissions test is a separate, recurring state test done only at Maryland VEIP stations or self-service kiosks. The nearest station to Rockville is in Derwood. Karnon Automotive does not perform VEIP tests, but it does repair the check-engine and emissions-system faults that cause a car to fail one.
I bought a car but cannot get it inspected before I title it. What now?
The MVA offers a 30-day temporary registration in that situation, so you can legally drive the car to an inspection station. Ask about it when you title the vehicle, then bring the car in.
Do I need an appointment?
Appointments are recommended for the fastest service: call (301) 444-4410 to book. Walk-ins are welcome if you have time and a little patience, and a quick call first will tell you whether there is room right now.