Utility Workers Union of America
AFL - CIO Local 127

There is a confusing patchwork of laws and agencies that govern workplace health and safety matters, but they’re all extremely important. Six thousand American workers are killed on the job each year, and there are far too many instances of unnecessary workplace injuries and illnesses. The best-known workplace health and safety law is OSHA, the Occupational Safety and Health Act, which is administered by the Department of Labor’s Occupational Safety and Health Administration, also called OSHA. Some workplaces (such as those in the coal mining industry) are regulated by a separate law, and almost half the states administer their own, federally approved programs for public sector employees. Other laws and federal agencies, such as the Environmental Protection Agency, play a role as well. And in all likelihood, your union contract has extra protections for your workplace health and safety.
—Adapted from The Union Member's Complete Guide, by Michael Mauer