The Marine Corps Military Occupational Specialty (MOS) 1391 is for Bulk Fuel Specialists. These specialists install, operate, maintain, and repair fuel handling units and equipment. They also test petroleum products to evaluate their quality for use in amphibious assault fuel handling systems.
Other responsibilities of a Bulk Fuel Specialist include:
Implementing a Petroleum Quality Assurance and Control Program
Preparing Tactical Fuel Systems (TFS) for storage
Supervising a Maintenance Management Program
Determining days of supply by type of fuel
To receive the 1392 NMOS, 1391s must complete both phases of the Petroleum Laboratory Course at Marine Detachment Fort Lee, VA.