If all seating positions with belts are occupied. Driver responsible for any violation. No driver license or insurance points. No conviction if child is less than five and proof presented at trial that restraint has been acquired since violation. All drivers and front seat passengers.
All vehicles required by federal standards to have seat belts.
Basically cars made after 1967 and light trucks and vans made after 1971. Full restraint system provided for the seating position. Requires lap and shoulder belt be used if provided even if the system is automatic shoulder belt, or air bag is provided. Vehicles not required to have belts. Professionally certified medical condition or mental phobia preventing use.