The Environmental Protection Agency (EPA) has introduced a proposed rule to eliminate all diesel exhaust fluid (DEF) deratements, offering significant regulatory relief to agricultural producers and the trucking industry. Farm Director KC Sheperd recently spoke with EPA Region 6 Administrator and fifth-generation Oklahoman Scott Mason to discuss the agency’s efforts to address ongoing concerns regarding …
Tag: DEF
May 31
EPA Chief Zeldin Pledges Aggressive Rollback of DEF Regulations at Oklahoma Ag Roundtable
Speaking to a room of producers facing tight margins and regulatory bottlenecks, Environmental Protection Agency (EPA) Administrator Lee Zeldin vowed to dismantle standard federal mandates on Diesel Exhaust Fluid (DEF) systems. Zeldin made the remarks during a focused agricultural roundtable with Oklahoma farmers and ranchers on Saturday, May 30, emphasizing that current mitigation protocols are …


















