On one of my long drives between OH and FL last year, I decided to let my phone read me about 14hrs of EPA case files. The simple answer to your question, is you sue the EPA. States do it, cities do it, big oil does it, power plants do, cause anytime they pick on a big dog, they get bit. And once in litigation, related enforcement stops.. Simple as pie, read for yourselves.
Now as you may have noticed, they've most recently been taking action on rules that have long existed, but just recently somehow interpret much differently than everyone else in the aftermarket automotive industry for past 30yrs. This was even questioned by a member of congress during a hearing, then bam nothing more.. And ever since, do as they see fit. Focusing on the easy pickings, small companies one at a time, by first demanding all sales records to gain evidence, and more "customer" names. Easy,, link.. Then offering to settle for much less than you'll spend going to court. Much like the DEA picking off small drug dealers, and cutting a plea, vs going after say Purdue Pharma, and fighting a big dog with in house lawyers and $$$ to burn. They really ain't very good in court from my 14hr reeding lesson .. Always getten schooled, and pull their horns in quick when a big time law firms show up with 1500 $ hr guns.
So, rather than wait around for the RPM act smothers to kiss the right ass in Washington, the correct answer is go offensive. Class action by 1000 shops, crowd funded at $100 a head, is a cool million to shop around for a couple young guns looking to make a name. And the moment they file, EPA can't do squat to anyone till that case is concluded and the existing laws are interperted by a judge... That is the simple how to fix this issue. And personally find that much more appealing than listing to everyone out there just whining their but hurts. PRI, SEMA, are a waste of time, and owe me $40 back..