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Cache County emissions testing rules for 2026

What Cache County requires before you can renew your registration, which vehicles are exempt, what a test costs, and who to call.

Which model years need a test in 2026

Cache County is different: vehicles under six years old are not tested at all, and older vehicles test every other year. Even model years test in even calendar years; odd model years in odd calendar years. (Source: Utah Division of Motor Vehicles; Utah State Tax Commission)

Exempt vehicles

• New vehicles with an MSO
• Electric vehicles
• Motorcycles
• Off-highway and farm vehicles
• Custom vehicles
• Diesel vehicles 1997 and older or over 14,001 lbs GVWR
• Gas vehicles 2008 and newer over 14,000 lbs GVWR, and 2007 and older over 8,500 lbs GVWR

Exemptions as listed by the Utah DMV and the county. (Source: Utah Division of Motor Vehicles; Bear River Health Department (Cache County))

What a test costs

The Bear River Health Department regulation sets the inspection price as "Market," so it varies by station. The same fee applies whether you pass or fail, and if you fail or are rejected you get one free re-inspection at the same station within 15 calendar days. (Source: Bear River Health Department (Cache County))

Under the Cache County regulation, a 1996 or newer vehicle can qualify for a one-time waiver if it still fails after $200 of documented emissions-related repairs, its emission parts are present, and it is outside the federal emissions warranty. (Source: Bear River Health Department (Cache County))

Cities in Cache County

Logan, North Logan, Smithfield, Hyde Park, Providence.

What to do if you fail · How the test ties to registration

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