just got a call from the cheap reciprical saw blade,cheap extension cord,ruff service light bulb, cheap what ever I dont need phone salesman. he was trying to sell me first aid kits for the trucks.....already have them. Then he tried selling me fire extinguishers for the trucks , I dont have them on the trucks just at the shop......hummmmm he says osha requires them on all service trucks. Guess it would be a good idea and something I may have been overlooking. Last time I ever did need one with a engine fire on a car , the extigishers that everyone had so little power that the short time they sprayed didnt do any good and the vehical burnt up. That was an eye opener. so tell me does osha require them?