This is a pretty simple process really. All you have to do is follow the history. Here's how it goes:
1) Make rules and incite the municipalities to make rules where there are no rules.
2) Offer certification classes to teach those rules.
3) Convince the municipalities that contractors without certifications shouldn't be allowed to work.
4) Sit back and collect all the training fees for certifying contractors so they can work.
For reference please research "kitchen exhaust cleaning" - or "PWNA" or "Delco".
If you think kec guys are rolling in the dough now that all the regulations are in place then by all means support the BMP's and more power to you. If the kec industry isn't booming then maybe that approach didn't work.
You guys decide.