Relating to lighting equipment requirements for motor vehicles.

SB 1493 updates Texas vehicle safety rules by clarifying standards for high-mounted brake lights. It specifies that such lights comply with federal safety rules if they vary in intensity four or fewer times during braking stops lasting up to two seconds - without turning off. The bill directly affects vehicle manufacturers (making new vehicles) and repair shops (modifying existing lights) to meet this standard. It takes effect September 1, 2025, and does not change existing federal requirements.