The following list focuses mainly on the designators you can receive coming out of The Basic School. In some cases, your designator may be slightly different until you finish your MOS school. For example, as a Communications Officer you will be an 0601 (Basic Communications Officer) until you finish the course at which point you will be an 0602.
This page is currently being updated to align with the "Marine Officer MOS Assignment Handbook". The Basic School. Camp Barrett. March 3, 2019. Those MOS's with links to more information have been updated. Last update 10 February 2021.
Manpower Officers have oversight and management responsibilities for the Marine Corps’ most important resource – our Marines. The Manpower and Personnel Administration occupational field, which includes several hundred Staff Noncommissioned Officers and Noncommissioned Officers (PMOS 0111 Administrative Specialists) and hundreds of restricted officers, (PMOS 0170 Personnel Officers), provides manpower and administrative support to commanders at all echelons, enhancing the readiness and operational capabilities of the total force.
The Intelligence occupational fields conducts the collection, processing, and dissemination of intelligence. The specialties within the Intelligence 02 community are analysis, counterintelligence, imagery interpretation, geographic intelligence and human intelligence. Duty assignments vary widely from all levels of the Operating Forces, Supporting Establishment, and Joint Commands.
Entry-level Marine Intelligence Officers will be given specific training within one of the following disciplines: Ground, Human Source, Signals or Air Intelligence. These officers will gain unique opportunities for leadership, deployment and training. Once the rank of Major is attained, all of the disciplines merge together as the officer becomes a Marine Air Ground Task Force (MAGTF) Intelligence Officer. After three years of experience and completion of MIOC (MAGTF Intelligence Officer Course), you will be designated as a MAGTF Intelligence Officer, with leadership opportunities in both joint and Marine Corps billets.
Following career designation and four or more years of intelligence experience (usually around rank of Captain), all Marine Corps intelligence officers from the four specialty intelligence MOSs (0203, 0204, 0206, and 0207) merge into the 0202 MAGTF Intelligence Officer PMOS.
Ground Intelligence Officers serve as commanders and staff officers in the operating forces and are responsible for tactical planning and employment of ground surveillance and reconnaissance units as well as the coordination of a unit's overall intelligence effort.
Counterintelligence/Human Intelligence (CI/HUMINT) Officers serve in both counterintelligence and human intelligence billets. They command and/or lead CI/HUMINT units in tactical information gathering operations and activities in support of identified collection requirements.
Signals Intelligence/Ground Electronic Warfare (SIGINT/EW) Officers command and/or lead SIGINT/EW units in tactical information gathering operations and activities in support of identified collection requirements. SIGINT/EW Officers advise commanders and staffs on the employment of SIGINT and EW assets in support of information gathering and information operations and activities.
Air Intelligence Officers serve as the intelligence functional experts at all command levels of the MAW. They develop and execute intelligence plans, policies, and procedures that facilitate operations across the six functions of Marine aviation.
Infantry Officers are central to the role of the Marine Corps as an expeditionary force. They are responsible for training their Marines for every variety of ground combat mission in any environment. They gather and evaluate intelligence on enemy forces, develop offensive and defensive battle plans and command their infantry unit’s use of weapons and equipment.
Following successful completion of IOC, some Infantry Officers are assigned to one of three Light Armored Reconnaissance (LAR) Battalions and must obtain the 0303 LAR Officer NMOS.
Additional opportunities for 0302 Infantry Officers include consideration for the 0307 EGR Officer NMOS. EGR Officers are the commanders or assistants commanders in the reconnaissance battalions and force reconnaissance companies.
Logistics Officers have a high degree of visibility due to their critical role in planning strategies for every major unit in the operating forces. They perform a variety of duties including coordinating the movement of Marines and equipment from ship to shore to forward operating bases. This MOS allows officers to develop long-range projects, manage the supply chain and analyze data and performance.
Communications Officers are the backbone for command and control of operating forces in the Marine Corps. They are responsible for the planning, installation, operation and maintenance of data, telecommunications and computer systems. On the battlefield, officers must be able to quickly establish communications capabilities. This MOS requires officers to stay informed of rapidly evolving technology involved in their day-to-day duties.
Field Artillery Officers lead Marines in tactics, gunnery, gun-line drills, communications, maintenance, transportation and logistics. They provide close- fire support for infantry, armored reconnaissance and tank units. Their first assignment is to a firing battery within an artillery battalion, while future roles include fire support officer, fire direction officer, platoon leader and battery executive officer.
Combat Engineers lead Marines in route reconnaissance, demolitions, mine and countermine warfare, obstacle emplacement, breaching and construction. Engineering is divided into four categories: mobility, countermobility, survivability and general engineering. Officers find themselves performing many missions, such as building a bridge or repairing a medical clinic in a disaster-struck third-world country.
Cyberspace Officers command or assist in commanding a cyberspace operations unit or element. They supervise, direct, and provide guidance on all aspects of the employment of cyberspace personnel and systems.
Marine Corps Tank Battalions will be deactivating to align with the Force Design 2030 strategy. The Tank Officer brings firepower to the battlefield, commanding Marines in M1A1 tanks and providing recommendations for the tactical employment of tank units to unit commanders. Typically, the Tank Officer spends the first 14 months as a tank platoon commander and is stationed at either of the two active duty tank battalions, ready for deployment.
AAV officers command, or assist in commanding, assault amphibian (AA) units, provide recommendations to the supported unit commander for the tactical employment of AA units. AAV officers also direct AA units on maneuvers, tactical problems, and in combat.
Ground Supply Officers lead and train Marines in coordinating the equipment and material for mission requirements. They supervise the purchasing and contracting of supplies, manage budgets and develop spending plans. Their role ensures that Marines worldwide are properly equipped.
Financial Management Officers are in charge of financial issues, such as managing budgets and disbursing operations. Officers who work in the finance section coordinate military pay and travel, while the comptroller side consists of budgeting, accounting and leading internal reviews.
Judge Advocates provide legal advice and support to commanders, Marines, Sailors, and their families to promote the readiness of the force and contribute to Marine Corps mission accomplishment..
The CommStrat Officer develops communication plans; communicates with internal, domestic, and international audiences; and oversees the execution of plans and activities by 45XX occupational field Marines in support of operational and Service communication objectives.
Military Police Officers provide essential support to their commanding officers with all facets of law enforcement. Officers begin this MOS either on-base, providing security and law enforcement, or on deployment, supervising maneuver and mobility operations and internment operations, as well as providing area security and law enforcement.
Military Police Basic Officers Course
Fort Leonardwood, MO
9 weeks
Aviation Maintenance Officers supervise the maintenance of aircraft and aviation equipment. Their duties ensure that all Marine Corps aircraft are ready to fly to support any mission. These officers are in charge of aircraft inspection, managing technical training and administering safety programs.
Aviation Maintenance Officer Course
Naval Aviation School
Pensacola, FL
10 weeks
Aviation Supply Officers make critical decisions concerning budget, inventory management, deployment, personnel and other support matters. They serve in the Aviation Supply Department at any one of the 11 different Marine Aviation Logistics Squadrons (MALS), all dedicated to keeping Marine aircraft ready and safe.
Aviation Supply Officer Basic Qualification Course
Newport, RI
14 weeks
Officers in Aviation Command & Control serve as either Air Support Control Officers, Air Defense Control Officers or Air Traffic Control Officers. The primary functions of these MOSs include directing the interception of hostile aircraft and coordinating employment of surface-to-air-missiles, coordinating air support missions and directing activities related to air traffic control and airspace management.
Low Altitude Air Defense - 7204
Low Altitude Air Defense Course
Marine Corps Communication-Electronics School
29 Palms, CA
Air Support Control Officers - 7208
Air Support Control Officers Course
Marine Corps Communication-Electronics School
29 Palms, CA
12 weeks
Air Defense Control Officers - 7210
Air Defense Control Officers Course
Marine Corps Communication-Electronics School
29 Palms, CA
12 weeks
Air Traffic Control Officers - 7220
Air Traffic Control School
Pensacola, FL
16 weeks
Naval Flight Officer - 7578 (Student)
Naval Flight Officers (NFOs) operate the advanced weapons and electronic systems on board F/A-18 Hornets and EA-6B Prowlers. The division of labor between the pilot and the NFO allows the pilot to focus on flying the aircraft and the NFO to focus on the weapons systems. The NFO often has the best situational awareness of the battlefield, and at times leads entire aviation missions.
Aviation Preflight Indoctrination
Pensacola, FL
6 weeks
Primary Flight Training
FL, TX or OK
22 weeks
Advanced Flight Training
Pensacola, FL
14-49 weeks
Flight Student - 7599
Fixed-wing Pilot
Marine Fixed-wing Pilots fly some of the most advanced aircraft in the world. These officers perform essential functions of Marine Aviation—assault support, anti-air warfare, offensive air support, electronic warfare, control of aircraft and missiles, and aerial reconnaissance—to support missions around the world.
Aviation Preflight Indoctrination
Pensacola, FL
6 weeks
Primary Flight Training
FL, TX or OK
22 weeks
Advanced Flight Training
TX, MS or FL
14 - 49 weeks
Rotary/Tilt Rotor Pilot
Marine Rotary-wing and Tilt-rotor Pilots fly aircraft in coordination with ground forces to execute the missions of the Marine Corps. These officers and the aircraft they command may be ship-based or shore-based. Tilt-rotor Pilots' missions mirror that of Rotary-wing Pilots, combining transport capability with speed capability similar to that of Fixed-wing Pilots.
Aviation Preflight Indoctrination
Pensacola, FL
6 weeks
Primary Flight Training
FL, TX
22 weeks
Advanced Flight Training
Whiting Field, FL
27–44 weeks
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