Washington Vehicle Emission Check Program
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Stuart Range from I90 west of Thorp / Photo: LEVYsheckler
Automotive Emission Specialist Search
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Search Options Department of Ecology Authorized Emissions Specialist Search

Fuel Type:

Gas = All gasoline vehicles

Diesel = All Diesel vehicles


Authorized Emission Specialists are professional automotive repair technicians that have been specially trained in the diagnosis and repair of vehicles that fail any part of the emission testing process. Shops contained in this database that employ these emission specialists are familiar with the repair requirements of the Emission Check Program and are equipped to perform repairs on vehicles that fail an emission test.

Repairs performed by an Authorized Emission Specialist are the only repair costs that apply toward a repair waiver.

What is a waiver?

A waiver allows you to register your vehicle this year even if it doesn’t pass its final test. When your vehicle fails its re-test, you can get a waiver if all of the following are true:
• You have spent at least $150 on diagnosis and/or appropriate emissions repairs by an Authorized Emission Specialist after the initial failure.

• You have given the test station manager your original repair receipts signed by the Authorized Emission Specialist. The receipts must identify your vehicle by its license number and vehicle identification number.

• Your vehicle passed a visual inspection of its emission control equipment.
This webpage displays repair facilities with approved emissions testing equipment and at least one Ecology Authorized Emission Specialist. Please be aware that some technicians at a repair facility may not be Authorized Emission Specialists. Also, staff turnover may occur at any repair facility. Always request that your vehicle's emission repairs be performed by a Department of Ecology Authorized Gasoline and Diesel Emission Specialist. You may request to see the Specialist's certificate.

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