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Washington DC
(303) Master Plumber

Apply for the License

District of Columbia
Board of Industrial Trades ™

1100 4th St SW
Washington, DC  20024
Phone:  (202) 442-4400
Licensing Link

Exam Administrator

PSI Services LLC ™
DCOPLA Program

3210 E. Tropicana
Las Vegas, NV 89121
Phone:  (800) 733-9267
Candidate Bulletin Link

Exam Type

OPEN  BOOK

Exam Content

Subject Areas% of
Questions
Plumbing Fixtures and Terminology7
Plumbing Fundamentals13
Traps, Cleanouts and Interceptors7
Special Requirements3
Drainage Requirements19
Vent Requirements17
Water Distribution11
Plan and Analysis23
Total number of test questions:
100
Time allowed (hours):
4.0

Books Allowed in the Exam

1.
International Plumbing Code, 2012, ICC
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