In 2026, a car needs a Missouri safety inspection if its model year is 2015 or earlier, or if its odometer reads 150,000 miles or more regardless of model year. Vehicles that are both ten model years old or newer and under 150,000 miles are exempt. A separate emissions inspection applies to most gas and diesel vehicles registered in St. Louis City, St. Louis County, St. Charles County, or Jefferson County.
The 10-Year, 150,000-Mile Rule
Missouri exempts a vehicle from safety inspection for the first ten years following its model year of manufacture, as long as the odometer also shows fewer than 150,000 miles. Both conditions have to be true. Cross either line and the exemption ends.1Missouri Department of Revenue. Motor Vehicle – Additional Help Resource
The clock runs from the model year, not from when you bought the car. In 2026, a 2016 model-year vehicle is in its last exempt year (2016 plus ten is 2026). A 2015 is no longer exempt, even if the mileage is low. In 2027, the 2016 model year ages out and the floor moves to 2017.1Missouri Department of Revenue. Motor Vehicle – Additional Help Resource
You don’t have to track this yourself. Your registration renewal notice tells you whether an inspection is required for the next renewal.2Missouri Department of Revenue. Chapter 14 – Safety and Emissions Inspections and Required Equipment
How Often You’ll Need an Inspection
Once a car is out of the exemption, Missouri uses a biennial cycle keyed to the model year. Even-numbered model years get inspected in even calendar years; odd-numbered model years in odd calendar years. A 2012 model is due in 2026; a 2013 is due in 2027. The inspection can’t be done more than 60 days before you apply for registration or renewal.3Missouri Revisor of Statutes. RSMo 307.350
The safety inspection certificate itself is valid for 60 days from the inspection date. Let that window close without registering and you’ll need a new inspection.1Missouri Department of Revenue. Motor Vehicle – Additional Help Resource
Vehicles That Never Need a Safety Inspection
Several categories sit outside the inspection system entirely:
- All trailers, regardless of age or condition.
- Historic vehicles registered under RSMo 301.131. To qualify, the vehicle must be over 25 years old, owned as a collector’s item, and driven no more than 1,000 personal miles per year.4Missouri Revisor of Statutes. RSMo 301.131
- Vehicles registered with the Missouri Department of Transportation for intrastate commerce, though peace officers can still stop and inspect them for federal safety compliance.
- Commercial vehicles registered at 26,000 pounds or above for less than 12 months.
- Vehicles sold for junk, salvage, or rebuilding, and dealer-to-dealer sales.
- Low-speed vehicles as defined under Missouri law.
Motorcycles are not on this list. They do need safety inspections, with the fee capped at $10.2Missouri Department of Revenue. Chapter 14 – Safety and Emissions Inspections and Required Equipment
Selling a Used Car Is a Separate Trigger
If you’re selling a used vehicle more than six years old to an individual (not as a trade-in), the car must be inspected before the sale. This is a distinct requirement from the registration inspection, and the 10-year renewal exemption does not override it. A seven-year-old car that doesn’t need an inspection for your own renewal still needs one to change hands.5Missouri State Highway Patrol. Frequently Asked Questions About Motor Vehicle Inspection
Vehicles sold for junk, salvage, or rebuilding can skip the pre-sale inspection if the buyer signs an affidavit declaring that purpose. Dealer-to-dealer sales are also exempt.6Missouri State Highway Patrol. Motor Vehicle Safety Inspection FAQs
Emissions Inspections in the St. Louis Area
Safety inspections apply statewide. Emissions inspections apply only if your vehicle is registered in one of four areas:
- St. Louis City
- St. Louis County
- St. Charles County
- Jefferson County
Register anywhere else in Missouri and no emissions test is required.7Gateway Vehicle Inspection Program (GVIP). Does My Vehicle Need a Test?
Within those counties, the test covers gas-powered vehicles from model year 1996 or newer and diesel-powered vehicles from 1997 or newer, with a gross vehicle weight rating of 8,500 pounds or less. Older vehicles, heavier trucks, and electric vehicles are exempt. Like safety inspections, emissions tests follow the even/odd model-year schedule, and the result is valid for 60 days for individual owners and 120 days for dealers.7Gateway Vehicle Inspection Program (GVIP). Does My Vehicle Need a Test?
Selling in these counties pulls in one more rule: an emissions inspection is required at the time of sale regardless of model year, even for cars that would otherwise be exempt from routine testing. After the sale, the new owner has a 90-day grace period before needing another emissions inspection.8Missouri Revisor of Statutes. Missouri Code Chapter 643 – Section 643.315
What It Costs
Missouri caps the safety inspection fee at $12 for standard passenger vehicles and $10 for motorcycles and trailers. Stations set their own prices up to that limit, so you may pay less.2Missouri Department of Revenue. Chapter 14 – Safety and Emissions Inspections and Required Equipment If you also need an emissions test, that’s $24 at Gateway VIP stations.7Gateway Vehicle Inspection Program (GVIP). Does My Vehicle Need a Test?
If You Fail or Skip the Inspection
A failed safety inspection comes with a rejection notice listing the specific items that need repair. You then have 20 days, excluding Saturdays, Sundays, and state holidays, to make the repairs and return to the same station for a free reinspection of the failed items.5Missouri State Highway Patrol. Frequently Asked Questions About Motor Vehicle Inspection If that station has closed in the meantime, contact the Motor Vehicle Inspection Office at your local troop headquarters.6Missouri State Highway Patrol. Motor Vehicle Safety Inspection FAQs
Skipping entirely is costlier. The Department of Revenue will not process a registration or renewal without a valid Certificate of Inspection and Approval when one is required.1Missouri Department of Revenue. Motor Vehicle – Additional Help Resource Violating any provision of Missouri’s vehicle inspection laws is a misdemeanor.9Missouri Revisor of Statutes. Missouri Code Chapter 307 – Section 307.390 You are allowed to drive an uninspected vehicle over the most direct route between your home and an inspection station of your choice, but only for that purpose.3Missouri Revisor of Statutes. RSMo 307.350
The Missouri State Highway Patrol runs a searchable directory of licensed stations so you can confirm location and vehicle type before you go.10Missouri State Highway Patrol. MVI Stations Search Locations Bring your current registration and proof of insurance; Missouri law requires you to present a current insurance identification card or other proof of financial responsibility and sign an affidavit confirming coverage for the registration period.1Missouri Department of Revenue. Motor Vehicle – Additional Help Resource