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States With No Emissions Testing

In 2026, 23 states require no vehicle emissions test. Certain states never tested at all, while others shut down or put their programs on hold.

States that do not test

StateStatus
AlabamaNo vehicle emissions test
AlaskaAnchorage ended its testing in March 2012, after Fairbanks suspended its own on January 1, 2010.
ArkansasNo vehicle emissions test
FloridaFlorida stopped emissions testing in 2000.
HawaiiHawaii checks safety once a year, not emissions.
IdahoOn July 1, 2023, Idaho ended the testing program in the Treasure Valley.
IowaNo vehicle emissions test
KansasNo vehicle emissions test
KentuckyIn 2003, Louisville ended its testing, and the Northern Kentucky program ended in November 2005.
MichiganNo vehicle emissions test
MinnesotaNo vehicle emissions test
MississippiNo vehicle emissions test
MontanaNo vehicle emissions test
NebraskaNo vehicle emissions test
New HampshireSince February 13, 2026, New Hampshire has suspended its inspection program until further notice.
North DakotaNo vehicle emissions test
OklahomaNo vehicle emissions test
South CarolinaNo vehicle emissions test
South DakotaNo vehicle emissions test
TennesseeTennessee stopped its remaining vehicle emissions testing in Davidson County on February 5, 2022.
WashingtonOn January 1, 2020, Washington brought its emission check program to an end.
West VirginiaNo vehicle emissions test
WyomingNo vehicle emissions test
A pickup truck on a quiet rural highway under a big sky.