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Hours for motorist hotline: Mon-Sat, 8am-6pm
Motorist hotline: 1-888-828-8399

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Vehicle emissions testing is the state's most effective way to improve air quality
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Connecticut Emissions Program
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Test Centers are conveniently located throughout the State.

  • Find a Test Center
  • Diesel Tests
  • Where Do I Get a Free Re-test?

Use these convenient program features to improve your experience:

  • Set up an appointment or drive in
  • Schedule your test to coincide with other vehicle services
  • Call before you go
For questions on Challenge Tests, please contact the DMV Emissions Division Cheshire Technical Center. 		 


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