Saw an all Amish construction crew yesterday and they all had bright yellow hard hats. Made me do a triple-take. I'm guessing there's something to what the OP said because given the choice between dealing with OSHA or an eternity in hell for not wearing the prescribed Amish headgear, they choose the later
Phil
A couple years ago they came around and started harassing the construction guys. It was not a laughing matter. Heard of many 10-30k fines. Most got dismissed. If u put a no tresspassing sign on ur jobs when u show up I don't think they can inspect your job site.