Licensing Exams by Trade Name

Washington DC First Class Stationary Boilers (313)

Exam Details

Apply for the License

District of Columbia
Board of Industrial Trades
1100 4th St SW
Washington, DC  20024
Phone:  (202) 442-4400
Licensing Agency Site

Exam Provider

PSI Services LLC
DCRA Stationary Engineer Licensing
3210 E. Tropicana
Las Vegas, NV 89121
Phone:  (800) 733-2929
PSI DC Stationary Engineer Licensing Site

Exam Type

CLOSED  BOOK

Exam Content

The official exam bulletin is published and maintained by PSI.  Bulletin content (subjects covered in the exam) and file names for PDFs change regularly.  Always set your “favorite” or “bookmark” to the landing page we have linked above.  Candidates should always review the current exam information on the PSI website before applying or testing.

Books Allowed in the Exam

1.
Boiler Operator's Workbook, 4th Edition, R. Dean Williams
Buy at Amazon
2.
Stationary Engineering, 4th Edition, 2008, Steingress & Frost
Buy at Amazon
3.
High Pressure Boilers, 5th Edition, 2012, Steingress & Frost
Buy at Amazon
4.
Steam Plant Operation, 10th Edition, 2016, Woodruff & Lammers
Buy at Amazon
5.
Boiler Operator's Guide, 4th Edition, Anthony L Kohan
Buy at Amazon
6.
Refrigeration & Air Conditioning Technology, 7th Edition, Delmar Publishing
Buy at Amazon
7.
Low Pressure Boilers, 5th Edition, 2018, Steingress
Buy at Amazon
8.
Ugly's Electrical References, 2014, George Hart
Buy at Amazon
9.
Electric Motor Control for Integrated Systems, 4th Edition, Rockis, Mazur
Buy at Amazon
10.
HVAC Control Systems, 3rd Edition,Ronnie J. Auvil
Buy at Amazon

With the exception of Ugly's Electrical References, any edition of the above books are acceptable

Return to Top of Page
Copyright Notice
Jan-2026