Any operator of a passenger vehicle operated on a public street or highway in this state, as defined in § 31-1-1, transporting a passenger who is at least five years of age and under eighteen years of age, shall assure that the passenger is wearing a properly adjusted and fastened safety seat belt system, required to be installed in the passenger vehicle if manufactured pursuant to Federal Motor Vehicle Safety Standard Number 208 (, § 49 C.F.R. 571.208) in effect (January 1, 1989), at all times when the vehicle is in motion. A violation of this section is a petty offense Class 2 misdemeanor.