Understanding Missouri Vehicle Inspection Requirements
If you live in Missouri or plan to move there, understanding car inspection laws is important. The state mandates vehicle safety inspections for certain vehicles to ensure they meet safety and emissions standards. Knowing what year cars need inspection in Missouri helps you stay compliant and avoid penalties.
Does Missouri Require Vehicle Safety Inspections?
Yes, Missouri requires periodic safety inspections on many vehicles registered in the state. The goal is to maintain road safety and vehicle reliability. Emissions testing may also be required depending on where you live.
What Year Cars Require Safety Inspection in Missouri?
As of the most recent Missouri laws, the following rules apply regarding vehicle safety inspections:
- Passenger vehicles older than 10 years require a safety inspection every two years.
- If the vehicle is 10 years old or newer and has under 150,000 miles, it is exempt from the inspection.
- Vehicles with more than 150,000 miles, regardless of age, must be inspected biennially.
You're required to complete a safety inspection before renewing your vehicle registration if your car falls under the above categories.
When Is the First Car Inspection Due in Missouri?
In Missouri, cars do not need a safety inspection for the first 10 years, as long as they have fewer than 150,000 miles. If your car reaches 150,000 miles before 10 years, it will then need inspections every two years.
How Often Do You Need a Car Inspection in Missouri?
Once your vehicle is no longer exempt, Missouri requires safety inspections every two years. You will need to complete the inspection in the same calendar year as your vehicle registration renewal.
Which Counties in Missouri Require Emissions Testing?
In addition to safety inspections, emissions tests are required in specific counties. These include:
- St. Louis County
- St. Charles County
- Franklin County
- Jefferson County
- The City of St. Louis
Emissions testing generally applies to gasoline-powered vehicles from model years 1996 and newer. Diesel vehicles are only required if they weigh under 8,500 pounds.
Common Reasons Cars Fail Missouri Safety Inspection
Knowing what inspectors check can help you prepare. Inspections cover systems that affect safe operation, including:
- Brakes and brake lights
- Tires, wheels, and alignment
- Lights and reflectors
- Windshield wipers and glass condition
- Suspension and steering components
- Horn and seatbelt functionality
Fixing issues beforehand can save you time and extra trips.
What Do You Need to Bring to a Vehicle Inspection?
When you go for a car safety inspection in Missouri, bring the following:
- Vehicle title or current registration
- Valid driver’s license
- Inspection fee (usually set by the station)
Make sure your vehicle is clean and accessible, especially the areas that will be checked during the inspection.
How to Find a Licensed Vehicle Inspection Station
Missouri uses certified inspection shops across the state. These may include auto repair shops, tire centers, or dealerships. To ensure your inspection is valid:
- Use only state-certified inspection stations
- Check for certification displayed in the shop
- Call ahead to schedule an inspection or verify hours
What Happens After You Pass or Fail Inspection?
If your vehicle passes the inspection, you’ll receive a certificate. Use this to renew your registration. If the vehicle fails:
- You’re given a list of failed components
- Repairs must be made before re-inspection
- Rechecks are often free within 20 business days at the same station
Don’t ignore inspection failures. Without a valid inspection, you can't register your vehicle.
FAQs: Missouri Vehicle Inspection Requirements
Do brand new cars need inspection in Missouri?
No. New vehicles are exempt from safety inspections for 10 years as long as the mileage is below 150,000.
What if I drive an electric or diesel vehicle?
Electric vehicles may be exempt from emissions testing. Diesel vehicles under 8,500 pounds must be tested in emissions counties.
Are classic or antique cars exempt from inspections?
Yes. Vehicles registered as antique (over 25 years old and used for exhibition) are exempt from safety and emissions inspections.
How long does a vehicle inspection take?
Most inspections take 20 to 30 minutes, depending on station workload and your vehicle’s condition.
Can I get my car inspected out-of-state?
No. Missouri requires inspections to be performed at certified Missouri inspection stations.
Tips to Pass Your Missouri Vehicle Inspection
You can increase your chances of passing by preparing ahead:
- Check brake lights and turn signals
- Inspect tires for wear and proper inflation
- Test your horn, wipers, and seatbelts
- Have a mechanic do a pre-inspection check
Routine maintenance helps prevent costly failures. Keep your vehicle road-ready all year long.
Final Thoughts on Missouri Car Inspection Requirements
Understanding what year cars need inspection in Missouri keeps you on the right side of the law. It also ensures your vehicle remains safe for you and others on the road. Whether you're a new Missouri resident or have lived there for years, staying informed and prepared makes inspections quick and stress-free.
Follow the guidelines, know your car’s age and mileage, and complete inspections on time. It’s a smart step in keeping your car compliant and safe.
