Relating to lighting equipment requirements for motor vehicles.

HB 4955 amends Texas Transportation Code to clarify standards for high-mounted stoplamps on vehicles. It specifies that such stoplamps comply with federal safety standards if they vary in intensity four or fewer times without deactivating during braking for up to two seconds. The bill directly affects vehicle manufacturers and owners who install these lighting systems, ensuring their products meet a clear technical specification. The change takes effect September 1, 2025, updating compliance requirements under Section 547.3215.