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Federally Mandated Emissions Testing Information For Hamilton County Residents

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Emissions Testing is a State air pollution project mandated by the Federal government to increase air quality.  The County Clerk’s office is related only in that the law requires motorists to pass the test prior to registering. 

Direct all questions about testing to TDEC Vehicle Testing Information Hotline: 1-866-329-9632.

Emission Test: What To Do If My Car Fails?


All About Vehicle Inspection Programs In Tennessee


Inspection Station Hours and Holiday Closing Information
(information can be found by scrolling down the page to beneath operating hours)


Fact Sheet--Vehicle Emissions Testing for Hamilton County


Emission Exemption Application


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