Construction Trade Exam Research Area

Washington DC
(323) Third Class Stationary Boilers

Licensing Agency

Washington DC
Department of Consumer and Regulatory Affairs
Board of Industrial Trades

1100 4th St SW
Washington, DC  20024
Phone:  (202) 442-4400
Trade Board 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
Boiler Operations, Maintenance, and Safety 10
Water Treatment 10
Boiler Combustion, Fuels, and Pollution Control 10
Boiler Accessories and Auxiliary Equipment 10
Engineering Calculations 10
Electrical 10
Controls - Pneumatic and Electronic 10
Pumps, Feed, Hydronic, and Condensate Systems 10
Refrigeration, Air Conditioning, and Cooling Towers 10
Boiler Design and Principles 10

Total number of test questions: 70
Time allowed (hours): 2.5

Reference Books

1. Boiler Operator's Workbook, 4th Edition, R. Dean Williams Buy at Amazon
2. Stationary Engineering, 4th Edition, Harold J. Frost, Daryl R. Frederick, M. Steingress Buy at Amazon
3. High Pressure Boilers, 5th Edition, Frederick Steingress, Harold Frost Buy at Amazon
4. Steam Plant Operation, 10th Edition, Everett B. Woodruff, Herbert B. Lammers, Thomas F. Lammers Buy at Amazon
5. Boiler Operator's Guide, 4th Edition, Anthony L Kohan Buy at Amazon
6. Ugly's Electrical References, 2014, George V. Hart Buy at Amazon
7. Low Pressure Boilers, 4th Edition, Frederick M. Steingress Buy at Amazon
8. HVAC Control Systems, 3rd Edition, Ronnie J. Auvil Buy at Amazon
9. Electric Motor Control for Integrated Systems, 4th Edition, Gary J. Rockis, Glen A. Mazur Buy at Amazon
With the exception of Ugly's Electrical References,
any edition of the above books are acceptable.
Study materials are currently NOT available for this exam

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