Motor Vehicles - Accidents - Required Testing for Impaired Driving (Mateo's Law)

HB 1486 (Mateo's Law) requires drivers involved in motor vehicle accidents that cause death or life-threatening injuries to submit to mandatory breath and blood testing for alcohol or drug impairment. It directly affects drivers at fault in such crashes when police have reasonable suspicion of impairment. The bill mandates breath tests for alcohol concentration and blood tests to check for alcohol, drugs, or controlled substances, with medical personnel performing tests shielded from liability (except gross negligence). The law takes effect October 1, 2025.