If I only dealt with customers that comply with code I'd have no business to speak of. Most restaurants have aluminum filters, do not clean as often as they should, perform no routine maintanance, and are not aware of nor interested in codes. I am in the cleaning business and do my best to make customers aware of applicible codes but, if I do not give them what they ask for my competation will. I would love to see stricter enforcment of all regulations regarding Exhaust cleaning codes but, consider myself in the service business first and foremost. When I decide to get into the enforcement of NFPA codes biz I'll know its time to retire. And that's the way it is Sat 11/16/02.