Motor Vehicles - As enacted, authorizes utility terrain vehicles to operate on county roads and state highways throughout the state, subject to certain restrictions. - Amends TCA Title 55.

Tennessee's SB 728 allows utility terrain vehicles (UTVs) to operate on county roads and state highways with a 45 mph speed limit or less, subject to specific rules. It requires UTVs to be titled, registered, and covered by liability insurance, with operators aged 16+ needing a valid driver's license and all occupants wearing helmets. Safety equipment mandates include brakes, lights, roll bars, seat belts, and operational headlights during operation. The law exempts UTVs used for agriculture, recreational trails, or public safety purposes (like wildlife management) from registration and certain safety requirements. It restricts operation to daylight hours (30 minutes before dawn to 30 minutes after dusk) and prohibits use on interstates or controlled-access highways.