Relating to the authority of a state agency or the state's air quality state implementation plan to impose certain restrictions with respect to a motor vehicle, including a motor vehicle powered by an engine.

HB 2440 prohibits state agencies and Texas's air quality state implementation plan from restricting the sale, use, or ownership of motor vehicles based on their energy source (e.g., gasoline, electric, or other power types). It specifically bans restrictions on purchasing any vehicle, including those powered by engines, and prevents agencies from banning vehicles by fuel type. The law takes effect September 1, 2025, and directly affects vehicle owners, dealers, and state regulatory bodies. This policy change removes potential barriers for all vehicle types under air quality regulations.