Construction Trade Research Area

Washington DC
Third Class Stationary Boilers
ICC Exam # 323

Licensing Agency

Washington DC
Department of Consumer and Regulatory Affairs

Testing Center, Room 7200
941 North Capital Street, NE
Washington, DC  20002
Phone:  (202) 442-4363
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 Questions
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 and Codes

1. Boiler Operator's Workbook, R. Dean Wilson, ATP.  
2. Stationary Engineering, Frederick M. Steingress and Harold J. Frost, ATP.  
3. High Pressure Boilers, 4rd Edition, 2009, Frederick Steingress, Harold Frost, ATP. Buy at Amazon
4. Steam Plant Operation, Lammers, Woodruff, Lammers.  
5. Boiler Operator's Guide, Anthony L Kohan. Buy at Amazon
6 Ugly's Electrical References, 2008, George V. Hart. Buy from Amazon
7. Low Pressure Boilers, 2nd Edition, 2004, Frederick M. Steingress, ATP. Buy at Amazon
8. HVAC Control Systems, 2nd Edition, 2007, Ronnie J. Auvil, ATP. Buy at Amazon
9. Electric Motor Control for Integrated Systems, 4th Edition, 2009, ATP. Buy at Amazon
NOTE: With the exception of Ugly's Electrical References,
any edition of the above books is acceptable.

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