When Congress writes an environmental law, we implement it by writing regulations. Often, we set national standards that states and tribes enforce through their own regulations. If they fail to meet the national standards, we can help them. We also enforce our regulations, and help companies understand the requirements.
The U.S. Environmental Protection Agency (EPA) on Oct. 18 announced its final determination that emissions of lead from aircraft that operate on leaded fuel cause or contribute...
The EPA is not at this time proposing aircraft engine greenhouse gas emission standards. It is also issuing an ANPR that provides information on the process for setting an international...
