Plumber License Requirements in Minnesota

Minnesota licenses plumbers through the Department of Labor and Industry. Current state guidance covers journeyworker, master, and restricted plumbing licenses, and Minnesota's reciprocity page states that journeyworker or master plumber licenses obtained by examination in Alaska, Arkansas, Colorado, Idaho, Iowa, Montana, Nebraska, New Hampshire, New Mexico, North Dakota, Oklahoma, Oregon, South Dakota, Utah, Wisconsin, and Wyoming may qualify for Minnesota licensure without examination. Verified against Minnesota DLI plumbing licensing and reciprocity materials on 2026-03-09.