I have no idea what that language means so I'm not spending any time worrying about it. Most older cars are exempt from this stuff since they didn't have emission controls on them from the factory. I suppose the EPA could say that new cars cannot be modified in any way even for off road use but they would have a hard time selling that. The combined emissions from all the new cars modified for drag racing wouldn't amount to one day of traffic in LA.

Whoever wrote that statement had something in mind that they are going to put pressure on but they didn't exactly make it clear what their intentions are. I'll wait until I see something more concrete before I pay attention.