MOS Discription

Marine Corps (USMC) Enlisted Job Descriptions

OCCUPATIONAL FIELD 13, ENGINEER, CONSTRUCTION, FACILITIES, AND EQUIPMENT

The engineer, construction, and equipment OccFld comprises Marines whose duties include metalworking and welding; repair, maintenance, and operation of engineer heavy equipment such as cranes and bulldozers; construction and repair of military structures and facilities; clearing and emplacing obstacles such as minefields; construction of standard and nonstandard bridging; and emplacing and detonating explosives for construction and demolition projects.

Also, some Marines in the field work with the storage and distribution of bulk fuel products. Marines entering the field receive MOS 1300, Basic Engineer, Construction, and Equipment Marine. The basic Marine may be assigned a variety of MOSs and may be sent to a variety of formal schools.

The MOSs that initially are available are metal worker, engineer equipment mechanic, engineer equipment operator, combat engineer, engineer assistant, and bulk fuel specialist. The opportunity to participate in a formal apprenticeship program leading to receipt of a Department of Labor Certificate of Apprenticeship Completion may be available in some MOSs within OccFld 1300; refer to MCO 1550.22 for specific information concerning this program.

There is a variety of challenging and interesting billets available in OccFld 13, ranging from inspector-instructor duty to duty within the Marine divisions, force service support groups, and Marine aircraft wings. Also, various category "B" billets are available (MOSs 8000-9599).

Primary MOS's

MOS Job Title Authorized Ranks

1316 Metal Worker SSgt to Pvt

1341 Engineer Equipment Mechanic SSgt to Pvt

1345 Engineer Equipment Operator SSgt to Pvt

1349 Engineer Equipment Chief MGySgt to GySgt

1361 Engineer Assistant GySgt to Pvt

1371 Combat Engineer MGySgt to Pvt

1391 Bulk Fuel Specialist MGySgt to Pvt

Secondary MOS's (See Note Below)

1342 Small Craft Mechanic SSgt to LCpl

Note: A secondary MOS is a "job within a job." It denotes a special skill or training that the Marine holds in addition to the general requirements of his/her Primary MOS.

Primary MOS's
MOS	Job Title	Authorized Ranks
1316	Metal Worker	SSgt to Pvt
1341	Engineer Equipment Mechanic	SSgt to Pvt
1345	Engineer Equipment Operator	SSgt to Pvt
1349	Engineer Equipment Chief	MGySgt to GySgt
1361	Engineer Assistant	GySgt to Pvt
1371	Combat Engineer	MGySgt to Pvt
1391	Bulk Fuel Specialist	MGySgt to Pvt
Secondary MOS's (See Note Below)
1342	Small Craft Mechanic	SSgt to LCpl
Note: A secondary MOS is a "job within a job." It denotes a special skill or training that the Marine holds in addition to the general requirements of his/her Primary MOS.