( March 25, 2025, 4:47 PM EDT) -- WASHINGTON, D.C. — The U.S. Supreme Court on March 25 heard competing arguments as to whether the venue for several small oil refineries' challenges to the U.S. Environmental Protection Agency’s denial of requests for exemption from the Clean Air Act’s (CAA’s) Renewable Fuels Standards (RFS) program lies exclusively in the District of Columbia Circuit U.S. Court of Appeals because the agency's denial actions are “nationally applicable” or “based on a determination of nationwide scope or effect.”...