The EPA (And CARB) Have basically worked themselves out of a job, But no government agency can sit back and say Mission Accomplished, because they'd have to pack up and go home. So, they continually redefine the mission, and go after things that don't accomplish enough of a result to be worth the effort and tax dollars spent. It's time to pare this agency down to just enforcement, and send the folk in it off to accomplish another mission. we need to do the same thing with the NHTSA too, Cars are safe enough, they don't need to do my braking for me, and they certainly don't all need backup cameras...