Board of Industrial Trades

Effective July 18, 2022, candidates seeking an Occupational or Professional license in the categories below can now test first by contacting PSI directly to schedule examinations. The test first process will allow for faster scheduling and testing.


The license categories allowing test first are listed below: Electricians Steam and Operating Engineers

While the examinations can first be scheduled with PSI, passing an examination does not mean automatic licensure or that a license will be issued. Candidates passing examinations must still apply for a license, by submitting an application, together with credentialing documentation, and payment, to be considered for eligibility and approval by the board, commission or program.


Examination Scheduling Instructions

Exams may be scheduled online, by visiting psiexams.com. New users should:


Once the account is created and the candidate is registered, select Schedule an examination, and then proceed to the next steps:

  1. Select Government/State Licensing Agencies
  2. Select District of Columbia exams
  3. Select Account for the type of licensing exam that you are seeking
Candidates may also schedule examinations by calling 1 (855) 557-0616.

General Information

The District of Columbia Board of Industrial Trades was established to protect the public health, safety, and welfare of the citizens of the District by ensuring that individuals engaged in these trades have the specialized skills and training required to perform such services for the public.

The Board license law, which governs asbestos workers, plumbers, electricians, refrigeration and air conditioning mechanics, steam and operating engineers, and those in the elevator trades (with the exception of District of Columbia and Washington Metropolitan Area Transit Authority employees). The Board may establish bonding and insurance requirements, subcategories of licensure, education, and experience requirements for licensure, and other requirements.

The Board is comprised of 15 tradespersons, who are appointed by the Mayor and licensed in the District: three plumbers; two electricians; two refrigeration and air conditioning mechanics; two steam engineers; two asbestos workers; one elevator mechanic; one elevator inspector; one elevator contractor; and one consumer member. Eight members of the Board constitute a quorum.

The Board meets on the third Tuesday each month at 1:00 p.m. at the Department of Licensing and Consumer Protection located at 1100 4th Street, SW, Washington, DC 20024.