LicensebyState

Where a Maryland master plumber license transfers

1 documented state waive the exam for Maryland masters. 18 review by endorsement, 17 credit your hours, 2 give no credit.

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Maryland master plumber · “Master Plumber/Gas Fitter”

State license plus local requirements

Verified September 16, 2026· 9 sources

Issued by Maryland State Board of Plumbing (Department of Labor)

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).

How local licensing works in Maryland

Same territorial split as the journeyman level: the State Board license is not the license for Baltimore County or for WSSC territory in Montgomery and Prince George's Counties. Those jurisdictions license plumbers separately and enforce their own plumbing codes. A master who will contract in WSSC territory needs the WSSC plumber license; work only in Baltimore County needs the county license. Propane-gas-fitter certificates from the State Board are valid in the entire state. The reciprocal-license page states the Board may issue a State 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.

  • Washington Suburban Sanitary Commission (Montgomery County)
  • Washington Suburban Sanitary Commission (Prince George's County)
  • Baltimore County

Exam waived

Every destination

Reciprocity 1Endorsement 18Experience credit 17No credit 2Not applicable 12
Every state's rule for a Maryland license
StateMechanismNoteVerified
AlabamaEndorsement2026-09-16
AlaskaEndorsement2026-09-16
ArizonaNot applicableno state license at this level2026-09-16
ArkansasEndorsement2026-09-16
CaliforniaExperience credit2026-09-16
ColoradoEndorsement2026-09-16
ConnecticutEndorsement2026-09-16
DelawareEndorsement2026-09-16
District of ColumbiaReciprocityexplicit agreement2026-09-16
FloridaEndorsement2026-09-16
GeorgiaExperience credit2026-09-16
HawaiiExperience credit2026-09-16
IdahoNo credit2026-09-16
IllinoisEndorsement2026-09-16
IndianaEndorsement2026-09-16
IowaEndorsement2026-09-16
KansasNot applicableno state license at this level2026-09-16
KentuckyExperience credit2026-09-16
LouisianaNo credit2026-09-16
MaineEndorsement2026-09-16
MassachusettsExperience credit2026-09-16
MichiganExperience credit2026-09-16
MinnesotaExperience credit2026-09-16
MississippiNot applicableno state license at this level2026-09-16
MissouriNot applicableno state license at this level2026-09-16
MontanaExperience credit2026-09-16
NebraskaNot applicableno state license at this level2026-09-16
NevadaNot applicableno state license at this level2026-09-16
New HampshireExperience credit2026-09-16
New JerseyExperience credit2026-09-16
New MexicoExperience credit2026-09-16
New YorkNot applicableno state license at this level2026-09-16
North CarolinaExperience credit2026-09-16
North DakotaExperience credit2026-09-16
OhioExperience credit2026-09-16
OklahomaEndorsement2026-09-16
OregonNot applicableno state license at this level2026-09-16
PennsylvaniaNot applicableno state license at this level2026-09-16
Rhode IslandExperience credit2026-09-16
South CarolinaExperience credit2026-09-16
South DakotaEndorsement2026-09-16
TennesseeNot applicableno state license at this level2026-09-16
TexasEndorsement2026-09-16
UtahEndorsementexplicit agreement2026-09-16
VermontEndorsement2026-09-16
VirginiaEndorsement2026-09-16
WashingtonNot applicableno state license at this level2026-09-16
West VirginiaEndorsement2026-09-16
WisconsinExperience credit2026-09-16
WyomingNot applicableno state license at this level2026-09-16

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