Nevada to Maryland: journeyman plumber license reciprocity

The Board's home page states that State plumber and natural-gas-fitter licenses are required throughout Maryland except (1) Baltimore County and (2) areas served by WSSC in Prince George's and Montgomery Counties; those two jurisdictions issue their own licenses and have their own plumbing code. Propane-gas-fitter certificates from the State Board are valid statewide, including those counties. Inbound plumbers who will work only in Montgomery or Prince George's County should apply to WSSC, not (or not only) to the State Board; work only in Baltimore County goes through Baltimore County. Work in the remaining counties and Baltimore City uses the State Board license. The reciprocal-license page states the Board may issue a State journey or master plumber license to a person already licensed by WSSC or Baltimore County if that person holds both plumbing and gas licenses obtained by examination.

How local licensing works. NRS Chapter 624 licenses only contractors. A C-1 Plumbing and Heating license is issued to a business and qualified by an individual with four years of journeyman-or-higher experience within the past 15 years (NRS 624.260); the NSCB FAQ states that Nevada does not license individual journeymen. Whether a working plumber needs a personal card is decided by each county's or city's building administrative code, and only Clark County and Reno were confirmed to require one for plumbing.

Clark County (unincorporated Las Vegas valley, Laughlin and other unincorporated areas). Clark County Code §22.02.245 issues plumbing permits only to contractors holding an active Nevada C-1 license. §22.02.250(B) requires the permit-holding contractor to employ at least one plumbing qualified individual and to have a qualified individual or a journeyman plumber present in a supervisory capacity while permitted plumbing work is under way. §22.02.255 defines a journeyman as someone who has passed the appropriate journeyman examination accepted by the Building Official and makes the county photo certificate renewable; the plumbing category is the only one in §§22.02.255-.260 for which the code publishes an experience prerequisite before the applicant may sit the exam (the exact number of years could not be re-extracted from the county PDF on 2026-09-16 and should be confirmed with the Department of Building and Fire Prevention). The only equivalency in the code (§22.02.255) is for a current certificate from an accepted independent testing agency or from a political subdivision of Nevada within Clark County, on obtaining the county photo certificate at the holder's expense; there is no provision for other states' journeyman licenses, so an arriving plumber must sit the county-accepted exam. The county's current exam vendor and card administrator for plumbing were not confirmed from an official page.

City of Reno. Reno's Development Services page states that no person may perform installations, alterations or additions to a plumbing system in the city unless done by a holder of a valid journeyman certificate, that apprentice plumbers must carry a card from an approved apprenticeship program, and that the requirement does not apply to homeowners, to contractors who keep an on-site written agreement naming the certified supervisors of their subordinate employees, or to 'contractors with reciprocal licenses from another city/county/state/country' for their first 12 months of work inside the city limits, after which the Reno plumbing certification must be obtained. Out-of-state experience is useful only as evidence toward Clark County's experience prerequisite and, for those who want to contract, toward the NSCB's four-year qualifying-individual requirement.