What should I know going into the test?
This page is a resource for testing and does not have all testing information.
Selecting a testing station
How much does the test cost?
Click to find an inspection station near you or a Missouri Recognized Repair Station with signs displayed. Research inspection stations by checking resources like Missouri Attorney General's Office and Better Business Bureau.
If you don't drive your vehicle often...
- Bring the vehicle that needs the emissions test.
- Start early and arrive early. Repairs may need to be made and emissions repairs are complicated.
- The inspection station is required to inspect your vehicle within two hours of your arrival. If they do not, call (314)416-2115.
- Vehicles with the Malfunction Indicator Lamp (aka Check Engine Light) on must be tested with the light on. Do not get repairs right before the test.
- Drive your vehicle before taking the test to reset readiness monitors.
Passing the test
The emissions testing station will give you:
- An official state vehicle inspection report certifying a passing emissions inspection.
- An emissions inspection windshield sticker.
A passing test is only valid for registration for 60 days from the inspection datefor a vehicle owner. Visit the Department of Revenue Site for for more information on vehicle license renewal and titling.
Failing the test
Vehicle inspection station will give you:
- A failing state vehicle inspection report that shows what part of the inspection failed.
- A list of the ten nearest Missouri Recognized Repair Stations whose Missouri Recognized Repair Technicians can count related labor and diagnostic costs towards cost based waiver minimums.
- Emissions failure information.
- A repair data sheet for the repair facility performance report (this is not a waiver).
Vehicles failing a paid inspection get one free re-inspection at the same station within 20 business days (excludes holidays and weekdays) of date paid. You do not need to repair your vehicle at same inspection station.