Stationary engineers and boiler operators perform work familiar to some military personnel.

Jobs in this career are similar to the following job classifications in the

120A
Construction Engineering Technician (Warrant Officer only)
12P
Prime Power Production Specialist (Enlisted)
91J
Quartermaster and Chemical Equipment Repairer (Enlisted)

The following military occupations are no longer in active use:

21P
Prime Power Production Specialist (Enlisted)
52E
Prime Power Production Specialist (Enlisted)