How do I get a certification or license to practice as an industrial safety consultant in the US?
Certification and licensing are two different issues. Licensing is normally a state or local requirement, so you should check with licensing bureaus in your local area, or your state inspections and licensing offices. Certification normally results in being a “Certified Safety Professional” through the American Society of Safety Engineers. Their website has the specifics. There are also many other organizations that offer different certifications for specific industry professionals, so there may be other organizations that should be researched for the industries you work with.