Typical knee jerk right-wing reaction. Blame the EPA, when they have nothing to do with the FBO’s incorrectly storing or labeling products to ensure their clients safety. The blame is solely on the FBO’s inadequate training of line/ramp personnel involved in the fueling process. Also what exactly do you expect the NTSB to do? Independently investigate the accident? Because that’s about all they’re obligated to do. The EPA’s job is to protect human health and the environment. There is no reason that DEF, which has been in use since 2010 could not still be used with minimal to zero risk to aviators. Far more accidents have, and continue to happen, from refueling with the incorrect fuel, are we also to blame the EPA for that?