Construction Trade Exam Research Area

Master Plumber / Gas Fitter

Apply for the License

Maryland State Board of Plumbing
500 N. Calvert St., Room 302
Baltimore, MD  21202
Phone: (410) 230-6314
Contractor Licensing Web Site

Exam Administrator

PSI Licensure: Certification
3210 E. Tropicana
Las Vegas, NV 89121
Phone: (800) 733-9267
Candidate Information Web Page

Exam Type


Exam Content

Subject Areas# of
Plumbing Fundamentals and Safety 5
Materials, Uses and Specifications 6
Traps, Interceptors and Backwater Valves 4
Plumbing Fixtures, Fixture Fittings
and Plumbing Appliances
Water Supply Systems 8
Backflow Prevention 10
Drain, Waste and Vent Systems 13
Special Topics 3
Gas Appliances and Piping 40
Plumbing Mathematics 7

Total number of test questions: 100
Time allowed (minutes): 240


Books Allowed in the Exam


National Standard Plumbing Code, 2012 or 2015, PHCC

Buy from Publisher
2. NFPA 54: National Fuel Gas Code, 2012 or 2015, NFPA Buy at Amazon
3. Mathematics for Plumbers and Pipefitters, 8th Edition, Lee Smith Buy at Amazon
4. Any standard backflow text  
5. Code of Federal Regulations - 29 CFR Part 1926 (OSHA), GPO- OR - (OSHA) Selections by PSI, (latest amendments) Buy from Publisher
NOTE: The study material we are offering for this exam will exclude sample questions for reference # 4.

Additional References
(used in our sample questions)

1. ASSE Series 5000: Professional Qualifications Standard for Backflow Prevention Assembly Testers, Repairs, and Surveyors, 2009, ASSE Buy from Publisher
We do not offer study materials for this trade / license

Some Maryland specialty trades will not be offered because of overpriced, non-standardized, proprietary book titles that can only be used for licenses in this jurisdiction

Return to the Maryland State Page

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