EPA Administrator Zeldin Visits Iowa, Announces New EPA DEF Guidance, Attends State Fair, Celebrates One Big Beautiful Bill - Oklahoma Farm Report

EPA issues guidance to reduce DEF shutdowns - Texas Farm Bureau

By Jessica Domel Multimedia Reporter To keep farmers in the field and trucks on the road while protecting the environment, the Environmental Protection Agency (EPA) issued guidance to engine and equipment manufacturers that will allow farmers and drivers more time to repair faults in their Diesel Exhaust Fluid (DEF) system before it shuts down. The guidance, issued by EPA Administrator Lee Zeldin and U.S. Small Business Administrator Kelly Loeff…

The National Cotton Council (NCC) And The National Cotton Ginners Association (NCGA) Statement On EPA Action On DEF Systems

MEMPHIS, Tenn. — August 13, 2025 — The National Cotton Council (NCC) and the National Cotton Ginners Association (NCGA) welcome the U.S. Environmental Protection Agency’s (EPA) new guidance regarding Diesel Exhaust Fluid (DEF) systems, as announced by Administrator Lee Zeldin. “We appreciate the EPA and the entire administration for addressing the issues of and providing support to small businesses and farmers,” said NCC Chairman Patrick Johnson…

EPA shares industry reactions to DEF 'limp mode' fix

The U.S. Environmental Protection Agency (EPA) released a roundup of comments on the agency’s plan to provide relief for truckers and farmers dealing with slow speed and power loss related to vehicle diesel exhaust fluid (DEF) systems. On Tuesday, August 12, the EPA announced new guidance calling on manufacturers to update system software in existing vehicles and equipment to prevent the sudden speed and power loss (also known as “limp mode”) th…

EPA takes common sense step to address DEF issues

Missouri Farm Bureau President Garrett Hawkins issued the following statement: “Missouri Farm Bureau appreciates the Environmental Protection Agency (EPA) and Administrator Lee Zeldin for taking this common sense step to reduce government overreach that disrupts agriculture with its revisions to the Diesel Exhaust Fluid (DEF) guidelines. Our members have spoken loud and clear: power losses in equipment due to DEF issues significantly disrupt far…

EPA Administrator Zeldin Visits Iowa, Announces New EPA DEF Guidance, Attends State Fair, Celebrates One Big Beautiful Bill - Oklahoma Farm Report

On Tuesday, August 12, 2025, U.S. Environmental Protection Agency (EPA) Administrator Lee Zeldin was in Iowa to visit with state, local and federal partners, farmers, and stakeholders to discuss environmental issues in the state, announce new guidance from EPA on Diesel Exhaust Fluid (DEF), and celebrate President Trump’s One Big Beautiful Bill (OBBB).   Administrator Zeldin, U.S. Small Business Administration (SBA) Administrator Kelly Loeffler,…

Trump’s EPA Eases Derate Rules, Boosting Bus Passenger Safety

The Environmental Protection Agency on Tuesday announced sweeping changes to rules governing diesel exhaust fluid (DEF) systems, aimed at preventing sudden power losses that have long frustrated farmers, truckers and bus operators. The Trump administration says the guidance, which takes effect immediately, will ease operational disruptions and reduce safety risks while maintaining emissions standards. EPA Administrator Lee Zeldin unveiled the ch…