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License Requirements - Plumbing

Master Plumber/Gas Fitter

  • Person must have held a journey license for at least two years; and
  • Person must have completed 3,700 hours of training under the direction and control of a licensed master plumber; and
  • Person must pass a comprehensive written examination.

Journey Plumber/Gas Fitter

  • Person must have held an apprentice license for at least four years; and
  • Person must have completed 7,500 hours of training under the control and direction of a licensed master plumber; and
  • Person must have completed 32 hours of training in backflow prevention device testing; and
  • Person must pass a comprehensive written examination.

Apprentice Plumber/Gas Fitter
Person must be at least 16 years of age.

Master Natural Gas Fitter

  • Persons must have a current master gas fitter license from Baltimore City, Baltimore County or WSSC; or
  • Have at least four years of experience, and completed an approved training program; or
  • Possess an HVACR master or master restricted license, have at least two years of gas fitting experience as a journey gas fitter under a master gas fitter, plumber or HVACR master, who is found to be approved, and pass an examination.

Journey Natural Gas Fitter

  • Persons must have a current journey gas fitter license from Baltimore City, Baltimore County or WSSC; or
  • Acquired 3,750 working hours as an apprentice natural gas fitter over a period of at least two years under the direction and supervision of a licensed master gas fitter or master plumber.
    Note: Persons applying based upon experience will also be required to complete an approved training course and pass an examination.

Apprentice Natural Gas Fitter
Person must be at least 16 years of age.

Propane Gas Fitter (Certification)

  • Person must hold a current certification of completion of the National Propane Gas Association certified training program for Distribution Systems Operations; or
  • Person must hold a gas fitters license from a county or municipal corporation authorizing the person to provide gas services under a licensing program in existence prior to July 1, 1995; or
  • Person must demonstrate to the Board that the person's qualifications are at least equivalent to the qualifications required by the National Propane Gas Association training program for distribution systems operations.