I think it's definitely worth educating laborers to the risks associated with various substances they might come in contact with. I think the information is out there, I'm just not sure every contractor realizes their own liability exposure in allowing workers to come into contact with hazardous materials. I have always made it my standard to keep my crews at least aware of any possible hazards. I have been running crews for 15+ years and have only had two lost time accidents on my watch.
I would like to see their program, I am always looking for new ideas to help my guys keep safe.