Section 37-69-301 - License required(1) Except as provided in 37-69-102, a person working at the field of plumbing in this state, either as a master plumber or as a journeyman plumber, shall first obtain a license as provided in Title 37, chapter 69, part 3.(2) A person who receives a license under the provisions of this chapter shall carry the license, or proof of licensure, at all times while working on a job site and performing work that requires a license. Acceptable proof of licensure must be determined by the board and made known by the department to each licensee when a license is issued.En. Sec. 1, Ch. 203, L. 1949; amd. Sec. 1, Ch. 185, L. 1961; amd. Sec. 1, Ch. 497, L. 1975; R.C.M. 1947, 66-2401(1); amd. Sec. 3, Ch. 661, L. 1985; amd. Sec. 2, Ch. 361, L. 1999; amd. Sec. 5, Ch. 402, L. 1999.