The National Highway Traffic Safety Administration, the federal agency that sets safety rules for cars and trucks sold in the U.S., had recently created two new safety standards specifically for vehicles that run on hydrogen fuel. One standard covered how the fuel system must hold up during normal driving and in crashes, and the other covered the tank and valves that store the compressed hydrogen, making sure they don't leak or burst. This resolution would cancel those new hydrogen vehicle safety standards entirely, meaning they would not take effect and would have no legal force. Automakers building hydrogen-powered vehicles, and anyone who drives or rides in one, would be affected since these specific federal safety requirements for hydrogen fuel systems would no longer exist.