Heavy and tractor-trailer truck drivers perform work familiar to some military personnel.

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

12C
Bridge Crewmember (Enlisted)
1371
Combat Engineer (Enlisted)
13M
Multiple Launch Rocket System (MLRS)/High Mobility Artillery Rocket System (HIMARS) Crewmember (Enlisted)
14T
PATRIOT Launching Station Enhanced Operator/Maintainer (Enlisted)
3531
Motor Vehicle Operator (Enlisted)
3534
Semitrailer Refueler Operator (Enlisted)
923A
Petroleum Technician (Warrant Officer only)
EO
Equipment Operator (Enlisted)

The following military occupations are no longer in active use:

12B
Combat Engineer (Enlisted)
12C
Bridge Crewmember (Enlisted)
3533
Logistics Vehicle System Operator (Enlisted)