List of United States Navy ratings

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From left to right: a Special Warfare Operator 1st class and a Boatswain's Mate 2nd class.

United States Navy ratings are general occupations that consist of specific skills and abilities. Each rating has its own specialty badge, which is typically worn on the left sleeve of their uniforms by all enlisted personnel in that particular field. Working uniforms, such as camouflage Battle Dress Uniforms, utilities, coveralls, and Naval Work Uniform, wear generic rate designators that exclude the rating symbol. Officers do not have ratings; their occupations are classified by designators and professional staff corps.^[1] Ratings should not be confused with "rates", which describe the Navy's enlisted pay-grades.

Enlisted sailors are referred to by their rating and rate. For example, if someone's rate is Petty Officer 2nd Class and his rating is Boatswain's Mate; when combined, Boatswain's Mate 2nd Class (BM2) defines both.^[2]

1 History
2 Rating structure
3 Aviation
- 3.1 Notes
4 Construction ratings
5 Administration, deck, medical, technical, and weapons specialty ratings
- 5.1 Notes
6 Engineering and hull ratings
- 6.1 Notes
7 Discontinued and changed ratings
8 References
9 See also
10 External links

[edit] History

The U.S. Navy's enlisted occupational system is a product of more than 200 years of Naval evolution. The Navy of the United Colonies of the 1775 era offered only a few different jobs above the ordinary level of seaman. These included Boatswain's Mate, Quartermaster, Gunner's Mate, Master-at-Arms, Cook, Armorer, and Coxswain. These were titles of the jobs that individuals were actually performing and became the basis for petty officers and ratings. During this time, ship crews were taken from civilian life and enlisted for only one cruise, thus making the job at hand rather than career possibilities the primary consideration. It was not until 1841 that distinguishing marks for a rating were prescribed in the Regulations of the Secretary of the Navy and specialty marks were not added to enlisted men’s uniforms until 1866. The marks consisted of the tools or instruments used in each rating's specific duty. The Master-at-Arms, the police officer of a ship, wore the star of authority and the Gunner’s Mate wore two crossed cannons. Currently, all specialty marks for new ratings are approved by the Permanent Naval Uniform Board which is a division of the Bureau of Naval Personnel.^[3]

As the Navy’s rating system has changed so has the Navy. The first steamship, mine, radar, torpedo, aircraft carrier, and many other “firsts” all established a new era in the Navy, and each directly impacted the enlisted occupation structure. During World War II, the Navy also briefly maintained a rating of Specialist, similar to the rank in the United States Army. The rating of Specialist was discontinued in 1948.

After more than 200 years of evolution, today’s Navy enlisted rating structure still plays a key role in career development, serves as a basis for training, detailing, advancement, and simply keeping tabs on several hundred thousand Navy Personnel.^[3]

[edit] Rating structure

The pay grades E-4 (Petty Officer Third Class) through E-9 (Master Chief Petty Officer) fall within the rating structure. It is further broken down into four types of ratings and classifications; General ratings, which consist of broad occupational fields such as Electronics Technician, Machinist's Mate, or Machinery Repairman. Service ratings, that are made up of sub categories of general ratings that require further specialized training and qualifications. Service ratings are established, changed and removed depending on service requirements and changes in the way personnel are managed. Navy Enlisted Classifications (NEC), are numerical codes attached to a specific rating and are frequently used to indicate specialized qualifications and Emergency ratings. Finally, Emergency ratings are specific ratings that can be established in time of war and are distinguished by a letter of the alphabet enclosed in a diamond.^[2]

[edit] Aviation

General rating	Abbreviation	Service rating	Abbreviation
Aviation Boatswain's Mate	AB^[I]	(Launching & Recovery) (Fuels) (Aircraft Handling)	ABE ABF ABH
Aviation Boatswain's Mates are responsible for aircraft catapults, arresting gear and barricades. They operate fuel and lube oil transfer systems, as well as direct aircraft on the flight deck and in hangar bays before launch and after recovery. They use tow tractors to position planes and operate support equipment used to start aircraft.^[4]

Air-Traffic Controller	AC
Air-Traffic Controllers assist with the speedy flow of air traffic by directing and controlling aircraft. They operate field lighting systems and communicate with aircraft. They furnish pilots with information regarding traffic, navigation and weather conditions, as well as operate and adjust ground-controlled approach (GCA) systems and interpret targets on radar screens and plot aircraft positions.^[4]

Aviation Machinist's Mate	AD
Aviation Machinist's Mates are usually assigned to billets concerned with the maintenance of turbo-jet aircraft engines and associated equipment. They are responisble for the maintenance and replacement of aircraft engines and accessories, as well as performing the duties of flight engineers.^[4]

Aviation Electrician's Mate	AE
Aviation Electrician's Mates are responsible for aircraft electrical power generating and converting systems. They maintain lighting, control, and indicating systems and can install as well as maintain flight and engine instrument systems.^[4]

Aerographer's Mate	AG
Aerographer's Mates are the U.S. Navy's weather forecasters. They are trained in meteorology and the use of aerological instruments that monitor air pressure, temperature, humidity, wind speed, and direction. They prepare weather maps and forecasts and can analyze atmospheric conditions to determine the best flight levels for aircraft. An AG can measure wind and air density to aid the accuracy of anti-aircraft firing, shore bombardment and delivery of weapons by aircraft.^[4]

Aviation Structural Mechanic	AM^[II]	(Safety Equipment)	AME
Aviation Structural Mechanics are responsible for the maintenance of many aircraft parts such as wings, fuselage, tail, control surfaces, and landing gear. They maintain and repair safety equipment and hydraulic systems.^[4]

Aviation Ordnanceman	AO
Aviation Ordnancemen operate and handle aviation ordnance equipment. They are responsible for the maintenance of guns, bombs, torpedoes, rockets, and missiles. Their duties include the stowing, issuing, and loading of munitions and small arms.^[4]

Aviation Support Equipment Technician	AS
Aviation Support Equipment Technicians perform intermediate maintenance on aviation accessory equipment at naval air stations and aboard aircraft carriers. They maintain gasoline and diesel engines, gas turbine compressor units and electrical systems.^[4]

Aviation Electronics Technician	AT
Aviation Electronics Technicians are responsible for the maintenance of all aircraft radio, radar, and other rapid communications devices. They maintain all navigation equipment.^[4]

Aviation Warfare Systems Operator	AW
Aviation Warfare Systems Operators operate airborne radar and electronic equipment used in detecting, locating, and tracking submarines. They provide information for aircraft and surface navigation and act as helicopter-rescue crewmen, and function as part of the flight crew on long-range and intermediate-range aircraft.^[4]

Aviation Maintenance Administrationman	AZ
Aviation Maintenance Administrationmen perform clerical, administrative, and managerial duties necessary to keep aircraft maintenance activities running smoothly. They schedule and coordinate the maintenance workload, including inspections and modifications to aircraft and equipment.^[4]

Aircrew Survival Equipmentman	PR
Aircrew Survival Equipmentmen are responsible for the packing and care of parachutes. They maintain flight clothing, rubber life rafts, life jackets, oxygen-breathing apparatus, protective clothing, and air-sea rescue equipment.^[4]

[edit] Notes

I↑ : Aviation Boatswain's Mate is used at paygrade E-9 (Master Chief Petty Officer) only. Leading to AB: ABE (Launching & Recovery Equipment), ABF (Fuels), and ABH (Aircraft Handling).^[5]
II↑ : Aviation Structural Mechanic is used at paygrade E-8 (Senior Chief Petty Officer) only. Leading to AM: AME (Safety Equipment).^[5]

[edit] Construction ratings

Insignia	General rating	Abbreviation	Service rating	Abbreviation
	Builder	BU
	Navy builders are like civilian construction workers. They are skilled carpenters, plasterers, roofers, cement finishers, asphalt workers, masons, and painters. They build and repair all types of structures including: piers, bridges, towers, schools, offices, houses, and other buildings.^[4]

	Construction Electrician	CE
	Construction Electricians are responsible for the power production and electrical work required to build and operate airfields, roads, barracks, and hospitals. The work of a CE is equivalent to civilian construction electricians, telephone and electrical repairmen, lineman, and others.^[4]

	Construction Mechanic	CM
	Construction Mechanics maintain many types of construction machinery including; buses, dump trucks, bulldozers, rollers, cranes, backhoes, and pile drivers. They work on gasoline and diesel engines and transmissions. They also repair electrical, hydraulic, pneumatic and steering systems.^[4]

	Engineering Aide	EA
	Engineering Aides provide construction engineers with information needed to develop final construction plans. They conduct surveys for roads, airfields, buildings, etc. They perform soil tests, prepare topographic and hydrographic maps. They also survey for sewers, water lines, drainage systems and underwater excavations.^[4]

	Equipment Operator	EO
	Equipment Operators work with heavy machinery such as bulldozers, power shovels, pile drivers, etc. They use this machinery to dig ditches, excavate for building foundations, break up old concrete or asphalt paving and pour new paving. They grade and remove debris from construction sites, raise girders, and move and set in place other pieces of equipment or materials needed for the job.^[4]

	Steel Worker	SW
	Steel Workers rig and operate all special equipment used to move or hoist structural steel, structural shapes and similar material. They erect and dismantle steel bridge, piers, buildings, storage tanks, etc. They work with steel shapes, plates and built-up sections used in the construction of overseas facilities.^[4]

	Utilitiesman	UT
	Utilitiesmen supervise and perform tasks involved in the installation and maintenance of plumbing, steam, compressed air and fuel storage and distribution systems, They maintain air conditioning and refrigerator equipment, as well as sewage collecting and disposal facilities.^[4]

[edit] Administration, deck, medical, technical, and weapons specialty ratings

General rating	Abbreviation	Service rating	Abbreviation
Boatswain's Mate	BM
Boatswain's Mates train and supervise personnel in all activities relating to marlinspike, deck, and boat seamanship, and oversee the maintenance of the ship's external structure and deck equipment. They act as petty officers in charge of small craft and may perform duties as master-at-arms, serve in or take charge of gun crews, and damage control parties.^[4]

Culinary Specialist	CS
Culinary Specialists prepare menus and order the quantities and types of food items. They operate kitchen and dining facilities, keep records for food supplies and financial budgets, and serve as flight attendant aircrewmen. They can also serve as personal food service specialist for an admiral, or for a commanding officer aboard ship or at shore bases.^[6]

Cryptologic Technician	CT^[I]	(Administrative) (Interpretive) (Maintenance) (Networks) (Collection) (Technical)	CTA CTI CTM CTN CTR CTT
Cryptologic Technicians control the flow of messages and information. Their work depends on their special branch: CTAs or Administration Cryptologic Technicians perform administrative and clerical duties that control access to classified material. CTIs or Interpretive Cryptologic Technicians handle radiotelephone communications and foreign language translation. CTMs or Maintenance Cryptologic Technicians maintain electronic and electromechanical equipment. CTRs or Collection Cryptologic Technicians handle all Morse code communications and operate radio direction-finding equipment. Finally, CTTs or Technical Cryptologic Technicians handle all communications by means other than Morse code and electronic countermeasures.^[4]

Electronics Technician	ET	(Submarine Navigation) (Submarine Communications) (Nuclear Power)
Electronics Technicians are responsible for electronic equipment used to send and receive messages, detect enemy planes and ships, and determine target distances. They maintain, repair, and calibrate all electronic equipment used for communications, detection tracking, identification, and navigation. Electronics Technicians are employed onboard nuclear powered ships to maintain the control subsystems in nuclear reactors.^[4]

Fire Controlman	FC
Fire Controlmen maintain the control mechanism used in weapons systems on combat ships. Complex electronic, electrical and hydraulic equipment is required to ensure the accuracy of Navy guided-missile and surface gunfire-control systems. They are responsible for the operation, routine care and repair of this equipment, which includes radars, computers, weapons direction equipment, target designation systems, gyroscopes and rangefinders.^[4]

Fire Control Technician	FT
Fire Control Technicians maintain the electronic equipment used in submarine weapons systems. They are responsible for the operation and maintenance of the complex electronic, electrical and mechanical equipment required to ensure the accuracy of Navy guided-missile systems and underwater weapons. They are responsible for ship safety by recognizing and analyzing data from several critical systems including sonar, radar, pericsope, radio, and torpedo inputs. Fire Control Technicians are also responsible for the submarine's internal LAN system.^[4]

Gunner's Mate	GM
Gunner's Mates operate and maintain all gunnery equipment, guided-missile launching systems, rocket launchers, guns, turrets, and associated equipment. They repair electrical, electronic, hydraulic and mechanical systems, and make detailed casualty analysis. They test ammunition, missiles and their ordnance components. GMs train and supervise personnel in the handling and stowage of ammunition, missiles, and assigned ordnance equipment.^[4]

Hospital Corpsman	HM
Hospital Corpsmen assist medical professionals in providing health care to service people and their families. They serve as pharmacists, medical technicians, nurse's aids, physician's or dentist's assistants, battlefield medics, and more. All work falls into several categories: first aid and minor surgery, patient transportation, patient care, prescriptions and laboratory work, food service inspections, and clerical duties.^[4]

Intelligence Specialist	IS
Intelligence Specialists are involved in collecting and interpreting intelligence especially secret information about enemies or potential enemies. They analyze photographs and prepare charts, maps, and reports that describe in detail the strategic situation all over the world.^[4]

Information Systems Technician	IT^[II]
Information Systems Technicians design, install, operate, and maintain state-of-the-art informations systems. This technology includes local and wide area networks, mainframe, mini and microcomputer systems and associated peripheral devices. They also write programs to handle the collection, manipulation and distribution of data for a wide variety of applications and requirements. They perform the functions of a computer system analyst, operate telecommunications systems including automated networks and the full spectrum of data links and circuits.^[7]

Legalman	LN
Legalmen are trained legalaides who assist professionals in the field of law. They work in Navy legal offices, performing administrative and clerical tasks necessary to process claims, conduct court and administrative hearings. They maintain records, documents and legal reference libraries. Legalmen may give advice on tax returns, voter registration procedures, immigration and customs regulations, regulations governing Social Security and veterans' benefits. They perform many duties related to courts-martial and nonjudicial hearings.^[4]

Master-at-Arms	MA
Masters-at-Arms uphold law and order aboard ships and shore stations. They help maintain discipline and assist in security matters. They ensure regulations are enforced, conduct investigations, take part in correctional and rehabilitative programs. They organize and train sailors assigned to police duty. Their equivalents in the civilian world are detectives and policemen.^[4]

Mass Communications Specialist	MC
Mass Communications Specialists are public affairs and visual information experts. They present the U.S. Navy story to audiences in the Navy and to the rest of the world through a variety of media. Mass Communications Specialists write and produce print and broadcast journalism, news, and feature stories for military and civilian newspapers, magazines, television and radio broadcast stations. They record still and video photography of military operations, exercises, and other Navy events.^[4]

Mineman	MN
Minemen test, maintain, and repair mines and their components. They are responsible for assembling, testing, and delivering mines to the planting agent. They maintain minehandling and minelaying equipment.^[4]

Missile Technician	MT
Missile Technicians assemble, and maintain missiles carried by submarines. They maintain the specialized equipment used in these functions. Although missile components and related testing and handling equipment are primarily electronic, they also work with the mechanical, hydraulic and pneumatic units in the Non-Line-of-Sight Launch System, fire-control systems and missile flight control systems.^[4]

Musician	MU
Musicians play in official Navy bands and special groups such as jazz bands, dance bands and small ensembles. They give concerts and provide music for military ceremonies, religious services, parades, receptions and dances. Official unit bands usually do not include stringed instruments, but each musician must be able to play at least one brass, woodwind or percussion instrument. Sailors are selected for this rating through auditions.^[4]

Navy Counselor	NC
Navy Counselors offer vocational guidance on an individual and group basis to Navy personnel aboard ships and at shore facilities. They assess the interests, aptitudes, abilities and personalities of individuals.^[4]

Operations Specialist	OS
Operations Specialists operate radar, navigation and communications equipment in the shipboard combat information centers (CICs) or bridges. They detect and track ships, planes, and missiles. They operate and maintain identification friend or foe (IFF) systems, electronic countermeasures (ECM) equipment and radio-telephones.^[4]

Postal Clerk	PC
Postal Clerks operate the U.S. Navy's large postal system, and have similar duties to their civilian counterparts in the U.S. Postal Service. They send mail on its way, collect postage-due mail, prepare customs declarations, collect outgoing mail, and cancel stamps. They perform a variety of record-keeping and reporting duties, which include maintaining an up-to-date directory service and locater file.^[4]

Personnel Specialist	PS
Personnel Specialists provide enlisted personnel with information and counseling about Navy jobs, opportunities for general education and training, and promotion requirements. They assist enlisted members' families with legal aid or reassignments in hardship situations. Personnel Specialists keep records up to date, prepare reports, type letters and maintain files.^[4]

Quartermaster	QM^[III]
Quartermasters assist the navigator and officer of the deck (OOD), steer the ship, take radar bearings and ranges, make depth soundings and celestial observations, plot courses and command small craft.^[4]

Religious Programs Specialist	RP
Religious Programs Specialists assist Navy chaplains with administrative and budgetary tasks. They serve as custodians of chapel funds, keep religious documents and stay in contact with religious and community agencies. They prepare devotional and religious educational materials, set up volunteer programs, operate shipboard libraries, supervise chaplains' offices and perform administrative, clerical and secretarial duties. They train personnel in religious programs and publicize religious activities.^[4]

Special Warfare Boat Operator	SB
Special Warfare Boat Operators drive fast speedboats down narrow, winding rivers, or the open ocean while performing high speed, medium range, or all weather insertion/extraction of Special Operations Forces. They participate in maritime interdiction operations, tactical swimmer operations, intelligence collection, operation deception, and Coastal patrol.^[8]

Ship's Serviceman	SH
Ship's Servicemen manage barber shops, tailor shops, ships' uniform stores, laundries, dry cleaning plants and cobbler shops. They serve as clerks in exchanges, gas stations, warehouses, and commissary stores. Some ship's servicemen function as Navy club managers.^[4]

Storekeeper	SK
Storekeepers are the Navy's supply clerks. They see that needed supplies are available including everything from clothing and machine parts to forms and food. They have duties as civilian warehousemen, purchasing agents, stock clerks and supervisors, retail sales clerks, store managers, inventory clerks, buyers, parts clerks, bookkeepers and even fork lift operators.^[4]

Special Warfare Operator	SO
Special Warfare Operators are Navy SEALS that are trained to jump from airplanes at high altitudes and open their parachutes at low proximity to the earth into frigid waters. They jump from helicopters travelling 30 knots at 30 feet over the water with no parachute. In addition Special Warfare Operators oversee ocean-borne mine disposal, carry out direct action raids against military targets, conduct reconnaissance, and secure beachheads for invading amphibious forces.^[8]

Sonar Technician	ST
Sonar Technicians are responsible for underwater surveillance. They assist in safe navigation and aid in search, rescue and attack operations. They operate and repair sonar equipment and jam enemy sonars. Sonar Technicians track underwater objects and repair antisubmarine warfare fire control equipment and underwater radiotelephones.^[4]

Torpedoman's Mate	TM^[IV]
Torpedoman's Mates maintain underwater explosive missiles, such as torpedoes and rockets that are launched from surface ships, submarines and aircraft. They maintain launching systems for underwater explosives, and are responsible for shipping and storage of torpedoes and rockets.^[4]

Yeoman	YN
Yeomen perform secretarial and clerical work. They deal with visitors, telephone calls and incoming mail. They organize files and operate copy machines and order and distribute supplies. They write and type business and social letters, notices, directives, forms and reports.^[4]

[edit] Notes

I↑ : Cryptologic Technician now includes former rating of Electronic Warfare Technician (EW).^[9]
II↑ : Information Systems Technician now includes former rating of Cryptologic Technician - Communications (CTO).^[9]
III↑ : Quartermaster QM now exists as Electronics Technician (Navigation) ETN on submarines.^[9]
IV↑ : Torpedoman's Mate now exists as Machinist Mate MM on submarines.Torpedoman's Mate now merged with Gunners'Mates^[9]

[edit] Engineering and hull ratings

General rating	Abbreviation	Service rating	Abbreviation
Damage Controlman	DC^[I]
Damage Controlmen perform the work necessary for damage control, ship stability, fire-fighting. They also prepare defenses against chemical, biological and radiological (CBR) warfare attacks. They instruct personnel in damage control and CBR defense and repair damage-control equipment and systems.^[4]

Electrician's Mate	EM
Electrician's Mates are responsible for the operation and repair of a ship's or station's electrical power plant and electrical equipment. They also maintain and repair power and lighting circuits, distribution switchboards, generators, motors and other electrical equipment. Electrician's Mates are employed onboard nuclear powered ships to maintain the control subsystems in nuclear reactors.^[4]

Engineman	EN
Engineman are responsible for internal diesel and gasoline engines. They also maintain refrigeration, air-conditioning, distilling-plant engines and compressors.^[4]

Explosive Ordnance Disposal	EOD
Explosive Ordnance Disposal Technicians locate, identify, render safe and dispose of all forms of ordnance (conventional, nuclear, chemical, biological, military, and improvised) both U.S. and foreign made. Parachute or Helicopter insertion and deep-sea diving capabilities are sometimes necessary to perform this mission. In addition to working closely with other military services, EOD technicians occasionally assist civilian law enforcement agencies.^[10]

Gas Turbine System Technician	GS	(Electrical) (Mechanical)	GSE GSM
Gas Turbine System Technician are responsible for all gas turbine engines. They maintain propulsion machinery, including gears, shafting and controllable pitch propellers, assigned auxiliary equipment propulsion control systems, electrical and electronic circuitry up to the printed circuit module, and alarm and warning circuitry. They handle administrative tasks related to gas turbine propulsion system operation and maintenance.^[4]

Hull Maintenance Technician	HT^[I]
Hull Maintenance Technicians are responsible for maintaining ships' hulls, fittings, piping systems and machinery. They install and maintain all shipboard and shore based plumbing and piping systems. They look after a vessel's safety and survival equipment and perform many tasks related to damage control.^[4]

Interior Communications Electrician	IC
Interior Communications Electricians operate and repair electronic devices used in the ship's interior communications systems, SITE TV systems, 1MC (public address system), electronic megaphones and other announcing equipment. They are responsible for the gyrocompass systems.^[4]

Machinist's Mate	MM
Machinist's Mates are responsible for the continuous operation of the many engines, compressors, gears, refrigeration, and air-conditioning equipment along with other types of machinery onboard ships and shore installations. They are responsible for the ship's steam propulsion and auxiliary equipment and the outside (deck) machinery. Machinist's Mates are deployed onboard nuclear powered ships to maintain the machinery and piping in nuclear reactors.^[4]

Machinery Repairman	MR^[I]
Machinery Repairmen are skilled machine tool operators. They make replacement parts and repair or overhaul a ship's engine auxiliary equipment, such as evaporators, air compressors and pumps. They repair deck equipment, including winches, hoists, condensers, and heat exchange devices. Shipboard Machinery Repairmen frequently operate main propulsion machinery, besides performing machine shop and repair duties. Machinery Repairmen assigned to submarines are responsible for shipping and storage of torpedoes.^[4]

Navy Diver	ND
Navy Divers are responsible for a wide variety of tasks like underwater ship maintenance, construction, explosive ordnance disposal (EOD), and underwater rescue. They are assigned to Naval Special Warfare Units to provide diving technical expertise and supervisory support to all submersible operations.^[11]

[edit] Notes

I↑ : The Navy has announced a merger of the DC, HT and MR ratings into Repair Technician (RT) is pending but has not announced a timeline.^[12]

[edit] Discontinued and changed ratings

General rating	Abbreviation	Status
Aviation Storekeeper	AK	Merged into Storekeeper on 1 January 2003.^[13]
Aviation Structural Mechanic (Hydraulics) Aviation Structural Mechanic (Structures)	AMH AMS	Merged into Aviation Structural Mechanic on 1 March 2001.^[13]
Aviation Support Equipment Technician (Electrical) Aviation Support Equipment Technician (Hydraulics and Structure) Aviation Support Equipment Technician (Mechanical)	ASE ASH ASM	Merged into Aviation Support Equipment Technician on 1 March 1990.^[13]
Cryptologic Technician (Communications)	CTO	Merged into Information Systems Technician on 1 March 2006.^[13]
Disbursing Clerk	DK	Merged into Personnel Specialist on 1 October 2005.^[13]
Dentalman	DT	Merged into Hospital Corpsman on 30 August 2005.^[13]
Electronic Warfare Technician	EW	Merged into Cryptologic technician on 1 October 2003.^[13]
Journalist	JO	Merged into Mass Communications Specialist on 1 July 2006.^[13]
Lithographer	LI	Merged into Mass Communications Specialist on 1 July 2006.^[13]
Mess Management Specialist	MS	Changed to Culinary Specialist on 15 January 2004.^[13]
Personnelman	PN	Merged into Personnel Specialist on 1 October 2005.^[13]
Photographers Mate	PH	Merged into Mass Communications Specialist on 1 July 2006.^[13]
Signalman	SM	Disestablished on 4 November 2003.^[13]