Licensing Exams by Trade Name - Home Link

Washington DC

(335) Sixth Class Stationary Boilers

Apply for the License
District of Columbia
Board of Industrial Trades

1100 4th St SW
Washington, DC  20024
Phone:  (202) 442-4400
Exam Provider
PSI Services LLC
DCRA Stationary Engineer Licensing

3210 E. Tropicana
Las Vegas, NV 89121
Phone:  (800) 733-2929
Exam Type
Exam Content
Content Areas% of
Boiler Operation & Safety10
Fuel & Draft System10
Steam Systems10
Boiler Water Treatment10
Engineering Calculations10
Boiler Fittings / Accessories10
Hydronic Systems10
Feedwater Systems10
Boiler Design & Principles10
Total number of test questions:
Time allowed (hours):
Books Allowed in the Exam
Low Pressure Boilers, 5th Edition, 2018, Steingress
Buy at Amazon

Any edition of the above book is acceptable

A practice exam is currently NOT AVAILABLE

This page is being provided for research and links to books sources only.  We do not have an expected date for availability.  This page may have changed since your last visit.  Please refresh to see current info (F5 on your keyboard).

Return to Top
Copyright Notice