Construction Trade Exam Research Area

Washington DC
Master Plumber with Gas
ICC Exam # 304

Licensing Agency

Washington DC
Department of Consumer and Regulatory Affairs

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

Exam Administrator

International Code Council
900 Montclair Rd.
Birmingham, AL 35213
(888) 422-7233, ext. 5524
Candidate Information Web Page

Exam Type


Exam Content

Subject Areas% of
Plumbing Fixtures and Terminology 7
Plumbing Fundamentals 13
Traps, Cleanouts and Interceptors 7
Special Requirements 6
Drainage Requirements 8
Venting Requirements 9
Water Distribution 7
Plan and Analysis 23
Gas 20

Total number of test questions: 100
Time allowed (hours): 4.0

Books Permitted in the Exam

1. International Plumbing Code, 2012, ICC. Doc Link
2. International Fuel Gas Code, 2012, ICC. Buy at Amazon
Study materials are currently NOT available for this exam

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