Moving to Rhode Island as a master plumber: every state's rule

Rhode Island issues a statewide Master Plumber license through the same DLT Board of Examiners of Plumbers (R.I. Gen. Laws §§ 5-20-3, 5-20-8, 5-20-16). A master’s license is required to engage in the plumbing business; journeypersons work under a master (§§ 5-20-8, 5-20-9). Firms need a contractor master under § 5-20-12.1 in addition to the individual master — that contractor-master credential is not this file’s master level. Licenses are issued on examination (§ 5-20-21). Chapter 20 has no reciprocity or endorsement section, and DLT’s plumber pages list no partner states and no exam waiver. DLT administers the plumber exams itself. Irrigator and water-filtration master licenses are separate.