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HB 777

Motor Vehicles - Required Equipment - Rear Occupant Alert Systems (Hot Cars Act)

2026 Regular Session Introduced by Linda Foley and 10 co-sponsors

Maryland would require new vehicles to have rear occupant alert systems to prevent children from being left unattended in hot cars.

Hearing 2/19 at 1:00 p.m.
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Bill Summary · HB 777

Legislative bill overview

HB 777 would mandate that new motor vehicles sold in Maryland be equipped with rear occupant alert systems—technology designed to detect when children or other occupants are left behind in vehicles. The bill addresses the "hot car" problem where unattended passengers, particularly young children, can suffer heat-related injuries or death during warm weather.

Why is this important

An estimated 37-40 children die annually in the U.S. from vehicular heat stroke, often when caregivers forget occupants are in the vehicle. Rear occupant alert systems use sensors to detect movement in rear seats and alert drivers through warnings (visual, auditory, or both), potentially preventing tragedy. Mandating this technology statewide would standardize safety requirements across Maryland's vehicle fleet.

Potential points of contention

  • Cost burden: Requiring new safety equipment increases vehicle purchase prices for consumers and manufacturing costs for dealers, potentially affecting affordability and market competitiveness
  • Technology maturity and reliability: Alert systems vary in effectiveness; false alarms could reduce driver trust, while missed detections undermine the safety purpose
  • Federal vs. state authority: Vehicle safety standards are typically set nationally by NHTSA; a state-only mandate creates compliance complexity for manufacturers and may conflict with federal jurisdiction over auto safety

Compiled from official sources — confirm details with the bill’s official record.

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