Navy Enlisted Classification Codes (NEC)Updated: March 28, 2022
While the Army and Marines use the Military Occupational Specialty Code (MOS) and the Air Force uses the Air Force Specialty Code (AFSC), the Navy uses ratings within the Navy Enlisted Classification (NEC) system to organize its jobs. It may look like there are just a few ratings, but there are many jobs classified within each rating.
All recruits will go through job classification before they go to basic training. Once a recruit decides on a job (or has one selected for them based on their ASVAB), they get a classification. For example, if they will be a Navy corpsman, their rating is HM (hospital corpsman). They start recruit training as a seaman recruit (E-1). The first three Navy ranks (E-1 through E-3) are classified as apprenticeships. For example, hospitalman apprentice (HA for E-2) and hospitalman (HN for E-3). As they progress in rank, their ratings change. As a petty officer, they go from HM3 to HM1.
Once they become an HM, they specialize even more. The HM rating tells the Navy where the hospitalman is to be assigned, based on their training. If they get training as an x-ray technician, they will receive the NEC of HM-8451 (basic x-ray technician) or HM-8452 (advanced x-ray technician).
A Guide to All Navy NECs
Here are the different occupational fields for Navy enlisted members:
Navy Administration Community
- LN – Legalman
Legalmen provide legal assistance in a variety of areas and prepare records for courts-martial and courts of inquiry. They may also help personnel in filing claims and directing their investigations.
- MC – Mass Communications Specialist
Mass communications specialists are the public relations representatives of the Navy. They write, edit and produce news articles. They also shoot and edit videos and layout and design content online and in print.
- MU – Musician
Navy musicians perform around the world at important diplomatic events, such as presidential inaugurations, as well as at morale-boosting events for deployed sailors. Musicians must pass an audition.
- NC – Navy Counselor
This is not an entry-level job. Navy counselors interview personnel and prepare and deliver talks. They work with the local media and recruit civilians into the Navy.
- PS – Personnel Specialist
Personnel specialists provide enlisted personnel with information and counseling about Navy occupations, education and training. They also counsel them on promotion requirements and their benefits.
- RP – Religious Program Specialist
Religious program specialists support the work of chaplains of all denominations in all aspects of their work that do not require them to be ordained. This may include maintaining records, bookkeeping, administrative duties and preparing written materials.
- YN – Yeoman (Administration)
Yeomen perform various administrative tasks, such as maintaining records and official publications.
Navy Aviation Community
- AB – Aviation Boatswain’s Mate
Aviation boatswain’s mates support naval aircraft in taking off or landing, either from land or ships. They may maintain or fuel the planes or direct their movement to ensure safe launches and recoveries.
- ABE – Aviation Boatswain’s Mate – Launch/Recovery
- ABF – Aviation Boatswain’s Mate – Fuels
- ABH – Aviation Boatswain’s Mate – Handlers
- AC – Air Traffic Controller
Air traffic controllers are responsible for directing and controlling the movement of Navy aircraft using radio communications.
- AD – Aviation Machinist’s Mate
Aviation machinist’s mates perform required maintenance, repairs and updates to Navy aircraft.
- AE – Aviation Electrician’s Mate
Aviation electrician’s mates are trained in how to repair and update high-tech electronics on Navy aircraft. They also perform in-flight duties such as operating radar and weapons systems.
- AM – Aviation Structural Mechanic
Aviation structural mechanics maintain Navy aircraft. They specialize in either maintaining the hydraulics systems and fuselage or the utility systems, such as pressurization and oxygen.
- AM – Aviation Structural Mechanic – Hydraulics
- AME – Aviation Structural Mechanic – Safety Equipment
- AO – Aviation Ordnanceman
The main job of aviation ordnancemen is to handle and service weapons and ammunition carried aboard Navy aircraft.
- AS – Aviation Support Technician
Aviation support technicians are responsible for the maintenance and repair of all ground equipment. This may include hydraulic systems, gasoline and diesel engines, brakes and air conditioning.
- AT – Aviation Electronics Technician
Aviation electronics technicians are responsible for repairing and maintaining navigation, infrared (IR) detection, radar and other electronics systems.
- AZ – Aviation Maintenance Administrationman (AZ)
Aviation maintenance administrationmen are responsible for the administrative side of keeping aircraft maintained. This includes scheduling aircraft inspections; issuing aircraft work orders and maintaining aircraft records.
- AW – Naval Aircrewman
Naval aircrewmen act as flight crewmembers after completing a six-year program, including training at a class “A” school for a specific service rating:
- AWF – Aircrewman mechanical
- AWO – Aircrewman operator
- AWR – Aircrewman tactical helicopter
- AWS – Aircrewman helicopter
- AWV – Aircrewman avionics
- PR – Aircrew Survival Equipmentmen
Aircrew survival equipmentmen maintain and repair safety gear, including parachutes, life rafts, oxygen machines and other aviation survival equipment.
Navy Cryptology Ratings (Information Warfare)
- AG – Aerographer’s Mate (Weather and Oceanography)
Aerographer’s mates are trained in meteorology and oceanography. They measure and monitor weather conditions and distribute the information to aircraft, ships and shore facilities.
- CTI – Cryptologic Technician (Interpretive)
Cryptologic technicians (interpretive) analyze and interpret foreign language materials, both written and oral, and prepare tactical reports. They may work in Arabic, Persian-Farsi, Chinese, Korean, Russian or Spanish.
- CTM – Cryptologic Technician (Maintenance)
Cryptologic technicians (maintenance) are responsible for installing, maintaining and troubleshooting both the hardware and software in computer systems.
- CTN – Cryptologic Technician (Networks)
Cryptologic technicians (networks) are responsible for the Navy’s computer networks across the world. Duties may include digital forensics analysis, cyber planning and expeditionary operations.
- CTR – Cryptologic Technician (Collection)
Cryptologic technicians (collection) collect and analyze communication signals from their stations on board ships, submarines and planes or onshore.
- CTT – Cryptologic Technician (Technical)
Cryptologic technicians (technical) perform similar functions as CTRs, except they collect and analyze radar signals.
- IS – Intelligence Specialist
Intelligence specialists analyze intelligence data, prepare and present intelligence briefings, and use maps and charts to produce image data.
- IT – Information System Technician
Information system technicians operate and maintain Navy satellite telecommunications systems, computers and local and wide area networks.
Naval Medical Personnel
- HM – Hospital Corpsman
The hospital corpsman rating branches off to a wide variety of medical and dental specialties. HMs pursue careers in dental, neurology, surgical, cardiology, combat or special operations medic.
Nuclear Field (NF)
- MM – Machinist’s Mate
- EM – Electrician’s Mate
- ET – Electronics Technician
Nuclear-trained machinist’s mates, electrician’s mates and electronics technicians work reactor control, propulsion and power generation systems in nuclear propulsion plants.
Navy Builders (Seabees)
Seabee comes from the abbreviation for construction brigade (CB).
- BU – Builder
Builders work as carpenters, roofers, plasterers, concrete finishers, bricklayers, masons, painters or cabinet makers.
- CE – Construction Electrician
Construction electricians build, maintain and operate power production services and electrical distribution systems at Navy installations.
- CM – Construction Mechanic
Construction mechanics repair and maintain a variety of heavy construction and automotive equipment, including buses, dump trucks, bulldozers and tactical vehicles.
- EA – Engineering Aide
Engineering aides conduct land surveys, prepare maps for construction sites and estimate costs for building projects.
- EO – Equipment Operator
Equipment operators run heavy construction equipment, such as bulldozers, graders, cranes and asphalt equipment.
- SW – Steelworker
Steelworkers fabricate structural steel, erect steel structures and weld and cut steel materials.
- UT – Utilitiesman
Utilitiesmen install and maintain plumbing, air conditioning, heating and other systems.
- MA – Master at Arms
Military police are called naval masters at arms. They keep naval and forward operating bases safe by establishing security procedures, controlling access, enforcing military law and using defensive tactics as needed. They also conduct security patrols and law enforcement operations, operate brigs and protect dignitaries and government officials.
Special Operations Community
- EOD – Explosives and Ordnance Disposal Technician
Explosives and Ordnance Disposal Technicians dispose of all types of explosives and ordnance. They may also help civilian law enforcement with disposal tasks.
- ND – Navy Divers
Navy divers perform underwater salvage, repair and maintenance on naval vessels. They could be also involved in submarine rescue and could help in explosive ordnance disposal.
- SO – Special Warfare Operator (Navy SEALs)
A Navy SEAL is a member of the Navy’s elite fighting team. They are trained and equipped to conduct special operations missions.
- SWCC – Special Warfare Combatant-Craft Crewmen
Special Warfare Combatant-Craft Crewmen carry out special operations, including waterborne guard post and special reconnaissance.
Navy Submarine Mechanical Community
- MM – Machinist’s Mate (Submarines)
Machinist’s mates (submarines) operate and maintain mechanical equipment and systems. They specialize in either hydraulic systems or weapons.
- MMA – Machinist’s Mate, Auxiliary
- TM – Torpedoman’s Mate
Navy Submarine Service Community
- CSS – Culinary Specialist (Submarine)
Culinary specialists (submarine) plan, prepare and serve meals on the submarine.
- LSS – Logistics Specialist (Submarine)
Logistics specialists (submarines) manage general supplies and parts. They order, inventory and purchase supplies; maintain records; pay bills and budget.
- YNS – Yeoman (Submarine)
Yeomen (submarines) handle all the clerical and other administrative-related work onboard the submarine.
Navy Submarine Technical Community
- ETV – Electronics Technician Navigation, Submarines (ETV)
The electronics technician navigation is responsible for the maintenance and repair of the electronics systems that guide and pilot the submarine.
- FT – Fire Control Technician
Fire control technicians are responsible for the submarine’s computer and control instruments used in weapons systems and various other programs.
- ITS – Information Systems Technician, Submarines (ITS)
Information systems technicians are responsible for the networks, computer systems and peripheral devices that make up the submarine’s information systems technology.
- MT – Missile Technician
Missile technicians are highly trained in all aspects of submarine strategic weapons systems. They maintain the ballistic missiles and launching systems.
- STS – Sonar Technician
Sonar technicians operate the submarine’s sonar and oceanographic gear and maintain sonar equipment.
- CS – Culinary Specialist
Culinary specialists plan, prepare and serve meals.
- LS – Logistics Specialist
Logistics specialists manage the inventories of supplies and repair parts, manage the financial accounting systems and operate the Military Postal System.
- RS – Retail Specialist
Retail specialists manage all aspects of retail services on board the ship, including inventory, procurement and accounting. They may operate laundry facilities, personal services (such as barbers) or retail trades.
Navy Surface Operations Community
- BM – Boatswain’s Mate
Boatswains direct and supervise the ship’s maintenance tasks. This includes the external structure, rigging, deck equipment and boats. They also act as helmsmen and stand on security watches.
- ET – Electronics Technician
Electronics technicians maintain and calibrate electronic equipment, such as communications and radar equipment.
- FC – Fire Controlman
Fire controlmen are responsible for the weapons fire control systems, such as the Navy’s advanced missile system.
- GM – Gunner’s Mate
Gunner’s mates are responsible for guided missile launching systems, gun mounts and other ordnance equipment such as small arms and magazines.
- IC – Interior Communications Electrician
Interior communications electricians are responsible for installing, maintaining and repairing onboard communications equipment, such as public address and alarms systems.
- MN – Mineman
Minemen work onboard minesweeping ships. Their job is to find and neutralize underwater mines. When they are ashore, they test, assemble and maintain underwater explosive devices.
- OS – Operations Specialist
Operations specialists are critical to the navigation of submarines. They plot the course of ships, operate navigation instruments and maintain combat information center displays.
- QM – Quartermaster
The quartermaster stands watch as an assistant to officers of the deck and the navigator. They act as helmsmen, performing duties in ship control, navigation and bridge watch.
- STG – Sonar Technician (Surface)
Sonar technicians (surface) operate and maintain the sonar equipment on surface ships, including frigates and minesweepers.
Navy Surface Engineering Community
- DC – Damage Controlman
Damage controlmen operate and maintain damage control equipment, such as firefighting equipment and chemical, biological and radiological defense equipment.
- EM – Electrician’s Mate
Electrician’s mates are responsible for running the ship’s electrical power generation systems, electrical equipment, lighting systems and electrical appliances.
- EN – Engineman
Enginemen operate, service and repair engines used to power ships and small craft.
- GS – Gas Turbines Systems Technician
Gas turbines systems technicians work in the engine room, maintaining gas turbine engines, propulsion control systems and other key equipment. They may specialize in electrical) or mechanical systems.
- GSM – Gas Turbines Systems Technician, Electrical
- GSM – Gas Turbines Systems Technician, Mechanical
- HT – Hull Maintenance Technician
Hull maintenance technicians are responsible for repairing and maintaining the ship’s structures. They may maintain plumbing and marine sanitation systems and repair small boats.
- MM – Machinist’s Mate
Machinist mates are responsible for keeping the steam turbines operating efficiently. These are used in ship propulsion.
- MR – Machinery Repairman
Machinery repairmen operate and maintain auxiliary equipment. They also machine tool replacement parts for the equipment.
The U.S. Navy Officers’ Billets
The Navy uses a four-digit number to identify officer billets (jobs). Naval officer jobs are a bit more complicated than the NEC used for enlisted members. These codes are used by manpower personnel to indicate the categories of officers needed for each job.
The first digit identifies the officer’s community.
|1||Line (unrestricted and restricted)|
|2||Staff||Medical and JAG|
|5||Civil Engineer Corps|
The second and third digits designate the officer’s area of specialization within the line, staff corps, limited duty or warrant officer community. The final (fourth) digit represents the officer’s current type of commission.
For example, a naval aviator will have the billet code of 1310. The first digit of 1 means the officer is an unrestricted line officer (URL), and the second and third digits of 31 indicate that they are a naval aviator. The last digit of 0 means they are a regular officer in the Navy in the grade of ensign and above.
Categories of Naval Officers
In the United States Navy (and USN Reserve), line officers are divided into unrestricted line officers, limited duty officers, and restricted line officers.
Unrestricted Line (URL) Officers
Unrestricted line officers hold combat warfare specialties as naval aviators and naval flight officers, surface warfare officers, submarine warfare officers and naval special warfare/naval special operations (NSW/NSO) officers, warrant officers, explosive ordnance disposal (EOD) officers and Navy diving officers.
Restricted Line (RL) Officers
They command only within their specific specialties and are normally in fields such as intelligence, cryptology, oceanography/meteorology, engineering duty, aeronautical engineering duty, aircraft maintenance and public affairs
Staff Corps Officers
Non-line officers in the Navy are called staff corps officers. They are specialists in professional career fields, such as physicians, lawyers, civil engineers, chaplains and supply specialists
Limited Duty Officers
As officer technical managers, limited duty officers (LDOs) advance within broad technical fields related to their former enlisted ratings. They satisfy leadership and management positions at the ensign through captain level.
A Guide to the Main Naval Officer Billet Codes
Here are the different occupational fields for naval officers:
Fully Warfare Qualified Unrestricted Line (URL) Officers
(1xxx) Line Officers
- 111x – Surface Warfare Officer
Surface warfare officers receive training that focuses on the operation of Navy ships at sea and the management of various shipboard systems.
- 112x – Undersea Warfare Officer
Undersea warfare officers are in charge of the safe operation of the nuclear reactor and maintaining the ship’s torpedoes, cruise missiles, ballistic missiles and sonar. They also chart the ship’s position and run communications and intelligence equipment.
- 113x – Special Warfare Officer (SEAL)
Special warfare officers lead Navy SEAL teams, the Navy’s principal special operations force.
- 131x – Naval Aviator
Naval aviators are trained to fly and operate the weapon systems of naval aircraft (helicopter, jet and propeller). They may also train as naval aviator-astronauts.
- 132x – Naval Flight Officer
Naval flight officers are trained to operate the weapon systems of naval aircraft as flight officers (helicopter, jet and propeller). They may also train as naval flight officer-astronauts.
Restricted Line (RL) Officer Designators
- 120x – Human Resources Officer
Human resources officers plan, program and execute the management of Navy personnel.
- 121x – Nuclear Propulsion Training Officer (Nuclear Power School Instructor)
Nuclear propulsion training officers are responsible for training future nuclear propulsion officers and nuclear field enlisted personnel.
- 122x – Nuclear Engineering Officer (Naval Reactors Engineer)
After completing a postgraduate education in nuclear engineering, nuclear engineering officers are assigned five-year positions at Naval Reactors headquarters approving, confirming and planning the design, operation and maintenance of nuclear reactors.
- 144x – Engineering Duty Officer (EDO)
Engineering duty officers are involved in the design, acquisition, construction, repair, maintenance, conversion, overhaul and disposal of ships, submarines and aircraft carriers.
- 150x – Aerospace Engineering Duty Officer, Engineering or Maintenance
The primary job of aerospace engineering duty officers involves planning the research, development, design and testing of naval aircraft and components.
- 151x – Aerospace Engineering Duty Officer, Engineering (AEDO)
Aerospace engineering duty officers, engineering, provide the overall direction of the entire air weapon system acquisition process from design to production and improvements of naval aircraft, spacecraft and weapons.
- 152x – Aerospace Engineering Duty Officer, Maintenance (AMDO and AMO)
Aerospace engineering duty officers, maintenance, provide oversight of maintenance and material management policies and procedures supporting naval aircraft, airborne weapons and related support equipment.
- 171x – Foreign Area Officer (FAO)
Foreign area officers are responsible for advising and assisting in planning and implementing politico-military policy concerning international affairs.
- 180x – Meteorology/Oceanography Officer
Meteorology/oceanography officers support naval strategy and tactics by applying oceanography, meteorology, mapping, charting and geodesy to naval operations.
- 181x – Information Warfare Officer
Information warfare officers create warfighting options for fleet commanders to fight and win in the information age. They deliver and operate reliable, secure and battle-ready global networks.
- 182x – Information Professional Officer
Information professional officers provide expertise in information, command and control and space systems.
- 183x – Intelligence Officer
Intelligence officers help in collecting, evaluating, and sending out naval intelligence to support surface, air and anti-submarine warfare units.
- 184x – Cyberwarfare Engineering Officer
Cyberwarfare engineering officers apply principles and methods of cyber operations, computer science and computer engineering to design, develop and test software for cyberspace defense, exploitation and attack.
(2xxx) Staff Corps Designators
- 210x – Medical Corps Officer
Member of the medical corps as military physicians in various specialties. They must have medical degrees and apply to be Navy doctors.
- 220x – Dental Corps Officer
Members of the dental corps work as dentists in various specialties. They must have a dental degree and apply to be a Navy dentist.
- 230x – Medical Service Corps Officer
Medical service corps officers work in the fields of health care administration, optometry, pharmacy or as medical specialists.
- 250x – Judge Advocate General’s Corps Officer
Members of the judge advocate general’s (JAG) Corps get direct appointments as lieutenants (junior grade) and work as military lawyers serving the Navy and Marine Corps.
- 290x – Nurse Corps Officer
Members of the nurse corps work as nurses in various specialties, such as nurse anesthetists, primary care nurse practitioners, professional registered nurses, perioperative nurses or critical care nurses. They must have nursing degrees and apply to be Navy nurses.
- 310x – Supply Corps Officer
Supply corps officers direct and administer supply activities. They get experience in various areas, such as supply management and expeditionary logistics, inventory control, disbursement, financial management, contracting, information systems, fuels management and foodservice.
- 410x – Chaplain Corps Officer
Chaplain corps officers advise commanders on ethical and religious matters. Their job is to conduct religious services, administer sacraments/ordinances, perform rites/ceremonies, conduct pastoral visitations, and provide advice involving the spiritual fitness of personnel of all faiths. They must have bachelor’s degrees and apply to be Navy chaplains.
- 510x – Civil Engineer Corps Officer
Civil engineer corps officers execute and manage all aspects of planning, construction, design and maintenance of Navy shore facilities.
(6xxx) Limited Duty Officers
- 611X – Deck (Surface) Officer
Deck (surface) officers plan, supervise and direct activities of deck and navigation personnel in seamanship and navigation exercises and drills.
- 612X – Operations (Surface) Officer
Jobs in the operations (surface) field include combat information center officers, anti-air warfare officers, combat systems officers, tactical action officers, electronic warfare officers and combat information center instructors.
- 613X – Engineering/Repair (Surface) Officer
Jobs in the engineering/repair (surface) field include engineering officers, electrical officers, repair officers, material officers, maintenance officers and commanding officers of ship intermediate maintenance facilities.
- 615X – Special Warfare Officer
Special warfare officers (SEALs) parachute, dive and demolish explosives in Naval Special Warfare Operations.
- 618X – Electronics (Surface) Officer
Electronics (surface) officers work in the field of non-nuclear electronics. They oversee the installation, operation and maintenance of electronics systems installed in units of the surface force.
- 621X – Deck (Submarine) Officer
Deck (submarine) officers are technical managers in the field of seamanship and navigation, with practical naval experience in these areas. Jobs in this field include operations officer, executive officer, commanding officer and instructors at various training activities.
- 623X – Engineering/Repair (Submarine) Officer
Engineering/repair (submarine) officers are technical managers in the field of surface ship marine engineering. This includes operation, maintenance and repair of main propulsion and auxiliary machinery and systems. They could be assigned jobs such as hull repair officer, hull superintendent, docking officer or ship engineer.
- 626X – Ordnance (Submarine) Officer
Ordnance (submarine) officers are technical managers in the field of strategic weapons and ordnance. They oversee submarine weapons systems and could direct or coordinate ordnance and ordnance equipment procurement, production or repair. They may also serve in the areas of weapons repair, nuclear weapons repair, fire control repair, torpedo repair or missile launcher repair.
- 629X – Communications (Submarine) Officer
Communications (submarine) officers are technical officers in all areas of submarine communications. They could serve as a communications officer or communications instructors.
- 631X – Deck (Aviation) Officer
Deck (aviation) officers manage aircraft handling and support operations aboard ships. They plan, supervise and execute the recovery, placement, refueling and launching of all aircraft aboard naval vessels. They maintain aircraft launch/recovery equipment, visual landing aids and aviation fuel and lubricant receiving and stowage.
- 632X – Operations (Aviation) Officer
Operations (aviation) officers are managers in air anti-submarine warfare. They could serve in tactical support centers and naval facilities in various billets.
- 633X – Maintenance (Aviation) Officer
Maintenance (aviation) officers manage personnel in the field of aircraft maintenance. They could serve as aircraft branch and division officers, maintenance/material control officers or aircraft maintenance officers.
- 636X – Ordnance (Aviation) Officer
Ordnance (aviation) officers are managers in the field of aviation ordnance and aircraft armament. They could serve as weapons branch and division officers, ordnance handling officers, ordnance/nuclear safety officers or special weapons unit officers.
- 639X – Air Traffic Control Officer
Air traffic control officers are managers in the field of air traffic control. They are responsible for control tower operations, base operations, heliport operations, surveillance and precision approach radars, approach/departure control radars and airspace acquisition.
- 641X – Administration (General) Officer
Administration (general) officers manage personnel in the field of administration, personnel, manpower planning, postal functions and printing.
- 642X – Information Systems (General) Officer
Information systems (general) officers provide expertise in the area of information, command and control, and space systems. They perform duties in the field of automated data processing using computer systems.
- 643X – Bandmaster (General) Officer
Bandmaster (general) officers plan and direct Navy music and band activities, including developing musical programs, composing, arranging and scoring music. They conduct band rehearsals and performances and prepare schedules of activities. They must audition and be accepted into the Navy Band.
- 646X – Meteorology/Oceanography (General) Officer
Meteorology/oceanography (general) officers provide meteorological and oceanographic support for fleet operations. They could serve as ship meteorologists/oceanographers, mobile environmental team officers or forecast duty officers.
- 647X – Photography (General) Officer
Photography (general) officers are responsible for all photographic and other imaging systems and equipment, including still, motion picture, and video systems used in aerial, surface and subsurface imaging. They could serve as officer-in-charge of imaging centers or as a photographic imaging systems officer.
- 648X – Explosive Ordnance Disposal (General) Officer
Explosive ordnance disposal (general) officers are responsible for the detection, identification, evaluation, rendering safe, recovery and disposal of all types of ordnance, explosives and demolition materials.
- 649X – Security (General) Officer
Security (general) officers are technical managers in all matters of law enforcement, physical security and corrections. They oversee physical security programs aboard ships. They could serve as security officers at sea and ashore.
- 683X – Intelligence Officer
Intelligence officers are responsible for assisting in the collection, evaluation and dissemination of naval intelligence in support of surface, air and anti-submarine warfare units and operational staff. They participate in reconnaissance missions and in the interrogation of prisoners. They could serve as intelligence or assistant intelligence officers.
Limited Duty Staff Corps Officers
- 651X – Supply Corps Officer
Supply corps officers are technical managers in the field of supply, including fiscal accounting and control, food service, operation of bachelor officer/enlisted quarters, ships’ stores and Navy exchanges.
- 653X – Civil Engineer Corps Officer
Civil engineering corps officers are technical managers in the fields of horizontal and vertical construction, facilities maintenance, utilities and automotive and construction equipment.
- 655X – Law Officer
Law officers are not lawyers. They administer command legal services in military law. They also assist in courts-martial, investigations, administrative boards and personal affairs.