Views of Hamilton County
Blue Rounded Corner

Federally Mandated Emissions Testing Information For Hamilton County Residents

BACK To County Clerk Site  

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. 


Air Pollution Board Emission Testing Update

Emission testing remains in effect prior to titling or renewing a vehicle registration until repeal is approved by the United States Environment Protection Agency (EPA).

The Tennessee Department of Environment and Conservation announced in May 2019 that they will recommend elimination of emission testing in counties, including Hamilton. That recommendation will be presented to EPA for approval. This process is expected to take another year before testing ends. Updates will be posted as they become available.


EMISSIONS TESTING PROGRAM (June 2018 Update): Frequently Asked Questions and Timeframe from the TN Department of Environment and Conservation


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


page bottom