Licensing Exams by Trade Name - Home Link

Washington DC
(300) Master Gas Pipe Fitter

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
Terminology and Fundamentals13
Theory and Principles13
Plan Reading13
Operating Principles8
Materials7
Pipe Sizing and Installation20
Appliances14
Vents5
Special Requirements7
Total number of test questions:
75
Time allowed (hours):
3.0

Books Allowed in the Exam

1.
International Fuel Gas Code, 2012, ICC
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