Nevada to Maryland: master plumber license reciprocity

Maryland issues a statewide Master Plumber/Gas Fitter license through the State Board of Plumbing. By statute a master plumber is licensed to provide plumbing services and natural gas services. Qualification on the Board's License Requirements page is two years as a journey plumber plus 3,750 hours of work as a journey plumber under a master, then the PSI master exam. The original Master Plumber/Gas Fitter license fee is $87.50 (updated July 1, 2025; renewal is also $87.50). Masters must carry general liability of at least $300,000 and property damage of at least $100,000 ($400,000 per occurrence), with the Board named as certificate holder; umbrella policies are not accepted. Reciprocal Master Plumber/Gas Fitter licenses are issued to holders licensed by the District of Columbia, Delaware (master only), WSSC, or Baltimore County (WSSC and Baltimore County applicants must hold both plumbing and gas licenses obtained by examination).

Nevada does not issue a master plumber license to individuals, and no county or city was found to issue a master-level plumbing card; Clark County recognizes a 'plumbing qualified individual', which is simply the person who qualifies a contractor's C-1 license with the State Board. The state-level credential is a classification C-1 Plumbing and Heating Contracting license from the Nevada State Contractors Board (NSCB), issued to a sole proprietor, partnership, corporation or LLC and qualified by a named individual rather than held by the plumber personally. An out-of-state master plumber who only wants to work for an employer needs no Nevada license at all (apart from the local journeyman card in Clark County and Reno). To contract, the qualifying individual must show four years of experience as a journeyman, foreman, supervising employee or contractor within the past 15 years (NRS 624.260), pass the PSI-administered Nevada Business and Law exam and the C-1 trade exam within six months of filing (three attempts each), and the business must pay the $300 application fee and $600 biennial license fee, submit a financial statement, fingerprints and background check, and post a bond of $1,000 to $500,000 set by the Board, plus the Residential Recovery Fund assessment ($200 to $1,000) if it does residential work. Under licensure by endorsement (NAC 624.600 and 624.615) the C-1 trade exam and the experience certification are waived for a qualified individual who has held an active license, as the same qualified individual, with no discipline or pending action for the past four years in Arizona (CR-77 Plumbing Including Solar), California (C-36 Plumbing together with C-4 Boiler, Hot Water Heating and Steam Fitting) or Tennessee (CMC Full Mechanical Contractor); a Florida CF Plumbing Contractor gets experience credit but must pass the Nevada C-1 trade exam; the Business and Law exam is never waived. The NSCB equivalency charts contain no Utah chart and no C-1 row for Connecticut, Louisiana, North Carolina, South Carolina, New Mexico, Hawaii, Alabama or West Virginia.