N.D. Cent. Code § 43-18-16
43-18-16. Plumber licensed by board may practice at any place in state - Exception
43-18-16. Plumber licensed by board may practice at any place in state - Exception
A plumber registered and licensed by the board to engage in the business of master
plumber, journeyman plumber, or plumber's apprentice may engage in or work at the business
of plumbing at any place in this state, except in cities that have adopted ordinances requiring a
municipal license or registration in addition to the state license before permitting any plumber to
work in such municipality.