Yes. You will be notified by mail of your test days. Vehicles must be tested every other year. New vehicles less than four years old or more than 25 years old are exempt. If you do not have your vehicle tested, it does not pass, or has not been granter a waiver, DMV will not renew your registration. For information and testing stations, call 1-888-828-8399 or visit online at

In Ridgefield, motorists can get their emissions test done at Limestone Service Station (203-438-8028), 399 Danbury Road, or Copps Hill Shell (203-438-2433), 130 Danbury Road.