EPA seeks changes to WOTUS and DEF rules
The U.S. Environmental Protection Agency is proposing a rule that would eliminate derate requirements for diesel exhaust fluid (DEF) on certain diesel-powered equipment. The proposal comes after months of feedback from farmers, ranchers, and truckers, who identified DEF-related performance limitations as one of their biggest concerns. EPA South Central Regional Administrator Scott Mason says the new EPA initiative would replace derate requirements with more typical warning signals, allowing...













