Requiring a specified public school safety education program to include student instruction on school vehicle safety and the use of seat belts; prohibiting specified persons from allowing pupils to stand in a school vehicle while the school vehicle is in motion; requiring that specified school vehicles purchased after January 1, 2018, be equipped with seat belts, as specified; prohibiting a person from operating a school vehicle unless the person and occupants under age 16 are restrained by a seat belt; etc.