Vehicles registered in Cache County with model years less than six years old are not required to have an emission test. Vehicles six years old and greater that have even- numbered model years must have an emission test in even-numbered years, and vehicles that have odd-numbered model years must have an emission test in odd-numbered years.
Effective January 1, 2018, the State of Utah removed the safety inspection requirement for most vehicles as a prerequisite for registration. Vehicles that require a safety inspection are listed below.
Salvage vehicles that have been rebuilt and are requesting a rebuilt title.
First time street legal ATV registrations. This includes ownership transfers for previously registered street legal ATVs.
Commercial vehicles are required to obtain a safety inspection for display and presenting to law enforcement, but it is not a prerequisite for registration.