EPA Proposes End to DEF Derating
A phrase you have likely never heard in the trucking industry until now, and will likely never hear in earnest is, “I love DEF derating!” The basic concept is simple: when a pollution aspect of the truck does not operate as well as it should, the truck intentionally limits its power until the problem is resolved. The Environmental Protection Agency (EPA) knows how much of a drag this regulation is, so the Trump Administration’s EPA is considering putting a stop to it.
