District of Columbia Plumbing License Requirements

Washington DC Plumbing License Requirements

In Washington DC a Plumbing License is required in order to perform work as a plumber in the District of Columbia. The DC Board of Industrial Trades is responsible for the administration and enforcement of plumbing regulations and issues the licenses for journeyman and master plumbers. The board also governs electricians, refrigeration and air conditioning mechanics, steam and other operating engineers.

Requirements for a DC Plumbing License

In order to get a plumbers license in Washington DC applicants will need to have the required work experience and pass the state licensing examination set by the Board of Industrial Trades - Plumbing and Gasfitting.

The examination shall be designed to test the applicant’s knowledge of the proper construction of: Practical plumbing, ventilation and drainage, hydraulics, sizing of pipes, fixtures and appliances generally used in plumbing, ventilating, and drainage work. And also the proper and safe methods of supplying water to buildings and removing water and sewage therefrom.

  • All applications need to be made on the form supplied by the board.
  • All applicants will need to pass the written state plumbing exam.
  • All applicant need to have worked as a journeyman plumber for at least 4 years.
  • All applications shall be accompanied by one or more letters from former employers.

The letter(s) of former employers should certify to the applicant’s character, qualifications, length of employment, and fitness to receive such license.

Board of Industrial Trades
Plumbing and Gasfitting

DCRA Headquarters
1100 4th Street SW
Washington, DC 20024

Phone: 202-442-4320
Website: https://dcra.dc.gov/

Applying for a DC Master Plumber License

Application form can be obtained from Pearson VUE,  located at the address below.

Pearson VUE
Department DC-PL

Metro-Plex I, Suite 250
8401 Corporate Drive
Landover, MD 20785

Phone: 1-877-540-5829
Website: https://www.pearsonvue.com/dc/industrial_trades/

State Licensing and Exams

Licensing and certification requirements for plumbers are usually determined at the state level and tend to vary slightly from state to state. Often, the job of enforcing and regulating these requirements falls to individual municipalities. To check the requirements for a plumbing license in a particular state select your location on the State Licensing Requirements page.

If you need more informations on passing the journeyman plumbing exams then perhaps you might want to read: How To Do The Plumber Journeyman Exam to help you get started as an apprentice plumber or journeyman plumber.

External References