(July 27, 2023, 1:54 PM EDT) -- WASHINGTON, D.C. — The U.S. Environmental Protection Agency’s decision not to amend its definition of “corrosive” for the purposes of the Resource Conservation and Recovery Act (RCRA) was not arbitrary and capricious, a District of Columbia Circuit U.S. Court of Appeals panel held in denying a petition filed by an environmental group challenging the definition because the group’s arguments were either untimely or not compelling enough to overcome the panel’s deference to the EPA....