After January 1, 1991, each applicant for renewal of a master or journeyman plumber's license under section 43-18-17 must have successfully completed prior thereto at least two credit hours, and thereafter a minimum of two credit hours and not to exceed four credit hours within a two-year period, of continuing education relating to the plumbing trade.
Credit hours for educational sessions must be determined by the board on a continuing basis to evaluate new sessions as they become available for fulfilling the educational requirements of this section. The board may charge a fee sufficient to offset expenses incurred for any educational sessions for which it is directly responsible.
N.D.C.C. § 43-18-17.1