MS SB2724

Expands seat belt requirements to all passengers in passenger motor vehicles (previously only required operators and front-seat passengers), except those required to use child passenger restraint systems.

Defines "passenger motor vehicle" as any motor vehicle designed to carry 15 or fewer passengers, excluding motorcycles, mopeds, all-terrain vehicles, and trailers.

Maintains exemptions for farm vehicles, persons with physician-verified medical inability to wear seat belts, rural postal carriers and utility meter readers on duty, and buses.

Keeps violation penalties at $25.00 fine maximum, with only the vehicle operator subject to fines for violations by passengers; violations do not appear on driving records.

Designates the law as "Harlie's Law" and takes effect July 1, 2017.