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Vehicle Emissions Testing in Indiana

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In Indiana, a vehicle emissions test is required for many original registrations, as well as for annual registration renewals. Renewal notices are sent annually to vehicle owners, and indicate whether and by what date an emissions test must be completed. A vehicle needs to be tested according to the year it was manufactured. If the vehicle model was made in an even numbered year, it will have to be tested in an even numbered calendar year, and if it was made in an odd numbered year, it will have to be tested in an odd numbered calendar year.


A car, truck, motor home requires an emissions test when:

  1. It is a 1976 model or newer.
  2. It is driven mainly in the urban areas of Clark, Floyd, Lake or Port County.
  3. It has a manufacturer's gross vehicle weight rating of 9000 pounds or less.


Emission tests are valid for 90 days. A valid test is required to reinstate a suspended registration and to complete an original vehicle registration or registration renewal. Used car dealers are required to issue a valid emissions test for any vehicle they sell. Getting an emissions test is the buyer's responsibility when the vehicle is purchased from a private owner. If you are buying a used car, you will need to call Clean Air Care at 1-888-240-1684 to check if the car needs to be tested.


A vehicle is exempt from emissions testing when:

  1. It is one of the four newest model year vehicles.
  2. The vehicle is made in 1975 or older or is powered by electricity or diesel fuel.
  3. It is considered as a show car and meets the criteria for a Show Car Exemption.
  4. It is considered a specialty or kit car and meets the criteria for Specialty Exemption.
  5. It is heavier than 9,000 Gross Vehicle Weight Rating.
  6. It is a ceremonial vehicle, a recreational vehicle or a motorcycle.
  7. It is registered as an antique vehicle or is of highway construction equipment.
  8. It has an engine displacement of less than 200 cube centimeters.
  9. It is registered for farm use only (including tractors).


Any Clean Air Car Check Vehicle Station can test your vehicle. You can also call 1-888-240-1684 to find the station closest to you. Look for the official sign issued by the Bureau of Motor Vehicles to authorized testing stations. The test standards will be displayed at the stations. Only select stations deal with light-duty diesel vehicles.


There is no charge for a vehicle emissions test in Indiana.


If your vehicle fails the emissions test, you must have the vehicle repaired, after which it must pass the after repairs emissions test. The vehicle can be repaired at the station or at an Indiana Certified Emission Repair Technician (ICERT) Facility. A list of these stations will be given to you if the vehicle fails the test. If the vehicle is repaired at an ICERT facility, and fails repeated tests, then you can apply for a waiver. The waiver will only be valid for a one-time test. You may apply for a waiver if all of the following apply:

  1. All emissions control equipment is intact and operational visually.
  2. Your vehicle has failed the test because the repairs are connected to emission problems.
  3. Repairs were carried out between two tests, both of which the vehicle failed.
  4. The vehicle shows an emission reduction between the first test and the last test.
  5. At least $75 has been spent on emission related repairs for vehicles made between 1976 and 1980.
  6. At least $450 has been spent on emission related repairs for vehicles made after 1981 and newer models. This is applicable to Porter and Lake counties. For Floyd and Clark counties at least $200 should have been spent. These repairs should have been carried out at an ICERT facility.
  7. The odometer should show at least 15,000 miles for vehicles made in 1996 and later.
  8. To be eligible for a minimum expenditure wavier, the vehicle should be at least 8 model years old.

Ensure that all repair slips are taken to the facility. Contact the branch for more information.


  • If you are out of state, or if your vehicle is otherwise unavailable for inspection, you can register your vehicle or renew your registration by contacting your BMV branch office.
  • See also Vehicle History Reports.

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