I take your point regarding the concerns for safety in the workplace. There is nothing in this legislation that legalizes impairment. In every instance, every case, where it was illegal to operate some piece of equipment or machinery or vehicle impaired, that law is unaffected by this.
I'm curious why you need additional protection or additional powers at this point that are not already present. What do you do with people who come to work impaired under prescription drugs, lack of sleep, or alcohol?