List of United States Navy ratings

The United States Navy classifies its enlisted personnel with a system of rating (job speciality) and rate (military rank). For example, an Aerographer's Mate First Class would be AG1; the AG indicates the rating (Aerographer's Mate) while the 1 indicates the rate (First Class Petty Officer).

Naval Enlisted Sailors are referred to casually by their rating. For example, Yeoman First Class John Smith would casually be referred to as YN1 (said: "Y, N, one"). U.S. Navy officers do not have ratings, but they do have designators.

Aviation Ratings

Enlisted men have served in Naval Aviation since its beginning. Despite the specialties involved in aviation many years past before these men were required to meet any special qualifications. Training requirements began to increased at the induction World War I. Today with the advancements in technology and equipment the requirements for these ratings have changed dramatically since the beginning.

Abbr.	Rating	Insignia	Description
AB* ABE ABF ABH	Aviation Boatswain's Mate (Launching & Recovery) (Fuels) (Aircraft Handling)	File:AB - Aviation Boatswain's Mate.gif	ABs operate, maintain and repair aircraft catapults, arresting gear and barricades. They operate and maintain fuel and lube oil transfer systems. ABs direct aircraft on the flight deck and in hanger bays before launch and after recovery. They use tow tractors to position planes and operate support equipment used to start aircraft.
AC	Air-Traffic Controller	File:AC - Air Traffic Controller.gif	ACs assist in the essential safe, orderly and speedy flow of air traffic by directing and controlling aircraft. They operate field lighting systems, communicate with aircraft, 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. A five-year enlistment is required to become an AC.
AD	Aviation Machinist's Mate	File:AD - Aviation Machinist's Mate.gif	Usually, ADs are assigned to billets concerned with maintaining turbo-jet aircraft engines and associated equipment or to any one of several types of aircraft maintenance activities. ADs maintain, service, adjust and replace aircraft engines and accessories, as well as perform the duties of flight engineers.
AE	Aviation Electrician's Mate	File:AE - Aviation Electricians Mate.gif	AEs maintain, adjust and repair aircraft electrical power generating and converting systems; lighting, control and indicating systems; and can install and maintain wiring and flight and engine instrument systems.
AG	Aerographer's Mate	File:AG - Aerographer's Mate.gif	AGs are the 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 also prepare weather maps and forecasts and analyze atmospheric conditions to determine the best flight levels for aircraft. An AG may also measure wind and air density to aid the accuracy of anti-aircraft firing, shore bombardment and delivery of weapons by aircraft.
AM** AME	Aviation Structural Mechanic (Safety Equipment)	File:AM - Aviation Structural Mechanic.gif	AMs maintain and repair aircraft parts(wings, fuselage, tail, control surfaces, landing gear and attending mechanisms) working with metals, alloys and plastics. They also maintain and repair safety equipment and hydraulic systems.
AO	Aviation Ordnanceman	File:AO - Aviation Ordnanceman.gif	Navy planes carry guns, bombs, torpedoes, rockets and missiles to attack the enemy on the sea, under the sea, in the air and on land. AOs maintain, repair, install, operate and handle aviation ordnance equipment. Their duties also include the handling, stowing, issuing and loading of munitions and small arms.
AS	Aviation Support Equipment Technician	File:AS - Aviation Support Equipment Technician.gif	ASs perform intermediate maintenance on aviation accessory equipment -"yellow gear" - at naval air stations and aboard carriers. They maintain gasoline and diesel engines; hydraulic and pneumatic systems; liquid, gaseous oxygen and nitrogen systems; gas turbine compressor units; and electrical systems.
AT	Aviation Electronics Technician	File:AT - Aviation Electronics Technician.gif	Modern aircraft depend on radio, radar and other electronic devices for rapid communications, effective navigation, controlled landing approaches and neutralizing enemy equipment and tactics. ATs are responsible for the test, maintenance and repair of this equipment.
AW	Aviation Warfare Systems Operator	File:AW - Aviation Warfare Systems Operator.gif	AWs operate airborne radar and electronic equipment used in detecting, locating and tracking submarines. AWs also operate radars to provide information for aircraft and surface navigation and act as helicopter-rescue crewmen, as well as part of the flight crew on long-range and intermediate-range aircraft. A five-year enlistment is required.
AZ	Aviation Maintenance Administrationman	File:AZ - Aviation Maintenance Administrationman.gif	The many clerical, administrative and managerial duties necessary to keep aircraft maintenance activities running smoothly are handled by the AZs. They plan, schedule and coordinate the maintenance workload, including inspections and modifications to aircraft and equipment.
PR	Aircrew Survival Equipmentman	File:PR - Aircrew Survival Equipmentman.gif	Parachutes are the lifesaving equipment of aircrewmen when they have to bail out. In time of disaster, a parachute may also be the only means of delivering badly needed medicines, goods and other supplies to isolated victims. PRs must pack and care for parachutes, as well as service, maintain and repair flight clothing, rubber life rafts, life jackets, oxygen-breathing apparatus, protective clothing and air-sea rescue equipment.

Notes

• ^*Aviation Boatswain's Mate is used at paygrade E-9 only.

Leading to AB: ABE (Launching & Recovery Equipment), ABF (Fuels), and ABH (Aircraft Handling).

• ^**Aviation Structural Mechanic is used at paygrade E-8 only.

Leading to AM: AME (Safety Equipment).

Construction Ratings

The Construction ratings of today are an outgrowth of World War II, but they did have an earlier counterpart. The twelfth Public Works Regiment was organized in December 1917 from a number of public work companies engaged in construction and maintenance of 10 separate camps at Great Lakes Naval Training Center. The 12th Regiment trained several hundred men for construction duties in France during World War I, but the regiment was disbanded after the war.

The concept of assembling construction forces with skilled enlisted men was rekindled under the name of Construction Battalion when Rear Admiral Norman Smith became Chief, Bureau of Yards and Docks in 1933. The term Construction Battalion was used in the mid-30s when it was written into war plans. However, the U.S. Navy established the World War II date of 5 March 1942 as official for the founding of the Seabees, and in 1967 the Seabees celebrated their silver (25th) anniversary. It was not until the post-World War II rating structure went into effect that Seabee ratings were identified by their own specialty marks and names. For example, the Water Tender (CB) (WTCB) was the identification used for the Utilitiesman (UT) rating until after World War II.

Abbr.	Rating	Insignia	Description
BU	Builder	[[]]	Navy builders are like civilian construction workers. They are skilled carpenters, plasterers, roofers, cement finishers, asphalt workers, masons, painters, bricklayers, sawmill operators or cabinetmakers. BUs build and repair all types of structures including: piers, bridges, towers, underwater installations, schools, offices, houses and other buildings. A five-year enlistment is required.
CE	Construction Electrician	[[]]	CEs are responsible for the power production and electrical work required to build and operate airfields, roads, barracks, hospitals, shops and warehouses. The work of a Navy CE is equivalent to civilian construction electricians, powerhouse electricians, telephone and electrical repairmen, substation operators, lineman and others. A five-year enlistment is required.
CM	Construction Mechanic	[[]]	CMs maintain heavy construction and automotive equipment - buses, dump trucks, bulldozers, rollers, cranes, backhoes, pile drivers - other construction equipment and service vehicles. They work on gasoline and diesel engines, ignition and fuel systems, transmissions, electrical systems and hydraulic, pneumatic and steering systems. A five-year enlistment is required.
EA	Engineering Aide	[[]]	EAs provide construction engineers with information needed to develop final construction plans. EAs conduct surveys for roads, airfields, buildings, waterfront structures, pipelines, ditches and drainage systems. They perform soil tests; prepare topographic and hydrographic maps and survey for sewers, water lines, drainage systems and underwater excavations. A five-year enlistment is required.
EO	Equipment Operator	[[]]	EOs work with heavy machinery such as bulldozers, power shovels, pile drivers, rollers and graders. EOs use this machinery to dig ditches; excavate for building foundations; break up old concrete or asphalt paving and pour new paving; loosen soil and grade it; dig out tree trunks and rocks; remove debris from construction sites; raise girders; and move and set in place other pieces of equipment or materials needed for the job. A five-year enlistment is required.
SW	Steel Worker	[[]]	SWs rig and operate all special equipment used to move or hoist structural steel, structural shapes and similar material. They erect or dismantle steel bridges, piers, buildings, tanks, towers and other structures. They place, fit, weld, cut, bolt and rivet steel shapes, plates and built-up sections used in the construction of overseas facilities. A five-year enlistment is required.
UT	Utilitiesman	[[]]	UTs plan, supervise and perform tasks involved in the installation, operation, maintenance and repair of plumbing, heating, steam, compressed air and fuel storage and distribution systems, air conditioning and refrigerator equipment and sewage collecting and disposal facilities.

Administration, Deck, Medical, Technical, and Weapons Specialty Ratings

Abbr.	Rating	Insignia	Description
BM	Boatswain's Mate	[[]]	BMs train and supervise personnel in all activities relating to marlinspike, deck and boat seamanship, and 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.
CS	Culinary Specialist	[[]]	CSs prepare menus and order the quantities and types of food items to prepare the food; operate kitchen and dining facilities; keep records for food supplies and financial budgets; serve as flight attendant aircrewmen; serve as personal food service specialists on admirals' staffs and for the commanding officer aboard ship or at shore bases; operate and manage living quarters aboard ship and at shore based motel/hotel type quarters
CT* CTA CTI CTM CTN CTR CTT	Cryptologic Technician (Administrative) (Interpretive) (Maintenance) (Networks) (Collection) (Technical)	[[]]	CTs control the flow of messages and information. Their work depends on their special career area: administration (CTA) - administrative and clerical duties that control access to classified material; interpretive (CTI) - radiotelephone communications and foreign language translation; maintenance (CTM)- the installation, servicing and repair of electronic and electromechanical equipment; collection (CTR) - Morse code communications and operation of radio direction-finding equipment; and technical (CTT) - communications by means other than Morse code and electronic countermeasures
ET*** ETN	Electronics Technician (Navigation)	[[]]	ETs are responsible for electronic equipment used to send and receive messages, detect enemy planes and ships, and determine target distances. They must maintain, repair, calibrate, tune and adjust all electronic equipment used for communications, detection and tracking, recognition and identification, navigation and electronic countermeasures.
FC	Fire Controlman	[[]]	FCs 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. FCs are responsible for the operation, routine care and repair of this equipment, which includes radars, computers, weapons direction equipment, target designation systems, gyroscopes and range finders. It is in the advanced electronics field and requires a six-year enlistment.
FT	Fire Control Technician	[[]]	FTs maintain the electronic equipment used in submarine weapons systems. FTs are responsible for the operation, routine care and repair of the complex electronic, electrical and mechanical equipment required to ensure the accuracy of Navy guided-missile systems and underwater weapons. A six-year enlistment is required.
GM	Gunner's Mate	[[]]	Navy GMs operate, maintain and repair all gunnery equipment, guided-missile launching systems, rocket launchers, guns, gun mounts, turrets, projectors and associated equipment. They make detailed casualty analyses and repairs of electrical, electronic, hydraulic and mechanical systems. They also test and inspect ammunition, missiles and their ordnance components. GMs train and supervise personnel in the handling and stowage of ammunition, missiles and assigned ordnance equipment.
HM	Hospital Corpsman	[[]]	HMs assist medical professionals in providing health care to service people and their families. They serve as pharmacists, medical technicians, food service personnel, nurse's aids, physician's or dentist's assistants, battlefield medics, X-ray technicians and more. An HM's work falls into several categories: first aid and minor surgery, patient transportation, patient care, prescriptions and laboratory work, food service inspections and clerical duties.
IS	Intelligence Specialist	[[]]	Military information, especially secret information about enemies or potential enemies, is called "intelligence." An IS is involved in collecting and interpreting intelligence data; analyzing photographs; and prepares charts, maps and reports; that describe in detail the strategic situation all over the world.
IT**	Information Systems Technician	[[]]	ITs design, install, operate and maintain state-of-the-art informations systems technology local and wide area networks, mainframe, mini and microcomputer systems and associated peripheral devices; write programs to handle the collection, manipulation and distribution of data for a wide variety of applications and requirements; perform the functions of a computer system analyst; operate and coordinate telecommunications systems including automated networks and the full spectrum of data links and circuits; transmit, receive, operate, monitor, controll and process all forms of telecommunications through various transmission media including global networks; apply diagnostic, corrective and recovery techniques to all facets of the integrated information systems; maintain all necessary logs, files and publications at the communications center; provid telecommunications and computer-related training and assistance to a wide variety of personnel.
LN	Legalman	[[]]	LNs 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 and maintain records, documents and legal reference libraries. They may give advice on tax returns, voter registration procedures, immigration and customs regulations, regulations governing Social Security and veterans' benefits and perform many duties related to courts-martial and nonjudicial hearings
MA	Master-at-Arms	[[]]	MAs uphold law and order aboard ships and shore stations. They report to the executive officer, help maintain discipline and assist in security matters. They ensure regulations are enforced, conduct investigations, take part in correctional and rehabilitative programs and organize and train Sailors assigned to police duty. Their equivalent in the civilian world is detectives and policemen.
MN	Mineman	[[]]	MNs test, maintain, repair and overhaul mines and their components. They are responsible for assembling, testing, handling, issuing and delivering mines to the planting agent and for maintaining minehandling and minelaying equipment.
MT	Missile Technician	[[]]	MTs assemble, maintain and repair missiles carried by submarines. They maintain the specialized equipment used in these functions. Although missile components and related testing and handling equipment are primarily electrical and electronic, MTs must also work with the mechanical, hydraulic and pneumatic units in the launcher systems, fire control systems and missile flight control systems.
MU	Musician	[[]]	MUs 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 MU must be able to play at least one brass, woodwind or percussion instrument. Sailors are selected for this rating through auditions.
NC	Navy Counselor	[[]]	NCs 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. This rate is not available to the incoming recruit.
OS	Operations Specialist	[[]]	OTs operate special electronic equipment used to interpret and document oceanographic data, such as the depth and composition of the ocean floor and how sound travels through water. They operate tape recorders and related equipment, prepare reports and visual displays and convert analyzed data to be used in statistical studies.
PC	Postal Clerk	[[]]	The Navy operates a large postal system manned by Navy PCs, who have similar duties to their civilian counterparts in the U.S. Postal Service. PCs send mail on its way; collect postage-due mail; prepare customs declarations; collect outgoing mail; cancel stamps. They also perform a variety of record-keeping and reporting duties, which include maintaining an up-to-date directory service and locator file.
PS	Personnel Specialist	[[]]	PSs provide enlisted personnel with information and counseling about Navy jobs, opportunities for general education and training, promotion requirements and rights and benefits. They also assist enlisted members' families with legal aid or reassignments in hardship situations. PSs keep records up to date, prepare reports, type letters and maintain files.
QM***	Quartermaster	[[]]	QMs 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. Additionally, they maintain charts, navigational aids and oceanographic publications and records for the ship's log.
RP	Religious Programs Specialist	[[]]	RPs 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 also 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.
SB	Special Warfare Boat Operator	[[]]	SBs drive fast speedboats down narrow, winding rivers, or the open ocean while performing; High speed, medium range, all weather insertion/extraction of Special Operations Forces, maritime interdiction operations, tactical swimmer operations, intelligence collection, operation deception, and coastal patrol.
SH	Ship's Serviceman	[[]]	Both ashore and afloat, SHs 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.
SK	Storekeeper	[[]]	SKs are the Navy's supply clerks. They see that needed supplies are available including everything from clothing and machine parts to forms and food. SKs 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.
SO	Special Warfare Operator	[[]]	SOs are Navy SEALS they are trained to jump from airplanes at high altitudes and open their parachute are low proximity to the earth into frigged waters, jump from helicopters travailing 30 knots at 30 feet over the water with no parachute. Oversee ocean-borne mine disposal, carry out direct action raids against military targets, conduct reconnaissance and secure beach heads for invading amphibious forces.
ST SDG STS	Sonar Technician (Surface) (Submarine)	[[]]	STs 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. STs track underwater objects and repair antisubmarine warfare fire control equipment and underwater radiotelephones.
TM****	Torpedoman's Mate	[[]]	TMs maintain underwater explosive missiles, such as torpedoes and rockets, that are launched from surface ships, submarines and aircraft. They also maintain launching systems for underwater explosives, and are responsible for shipping and storage of torpedoes and rockets.
YN	Yeoman	[[]]	YNs perform secretarial and clerical work. They deal with visitors, telephone calls and incoming mail. YNs organize files and operate copy machines and order and distribute supplies. They write and type business and social letters, notices, directives, forms and reports. They maintain files and service records.

Notes

• ^{*Cryptologic Technician now includes former rating of Electronic Warfare Technician (EW).}
  
• ^{**The Cryptologic Technician (Communications) CTO rating was merged into the IT rating on 1 Mar 2006.}
  
• ^{***Quartermaster QM now exists as Electronics Technician (Navigation) ETN on submarines.}
  
• ^{****Torpedoman's Mate now exists as Machinist Mate MM on submarines.}
  

Engineering/Hull Ratings

Abbr.	Rating	Insignia	Description
DC*	Damage Controlman	[[]]	DCs perform the work necessary for damage control, ship stability, fire-fighting and chemical, biological and radiological (CBR) warfare defense. They instruct personnel in damage control and CBR defense and repair damage-control equipment and systems.
EM	Electrician's Mate	[[]]	The operation and repair of a ship's or station's electrical power plant and electrical equipment is the responsibility of EMs. They also maintain and repair power and lighting circuits, distribution switchboards, generators, motors and other electrical equipment.
EN	Engineman	[[]]	Internal combustion engines, diesel or gasoline, must be kept in good order. This is the responsibility of ENs. They also maintain refrigeration, air-conditioning, distilling-plant engines and compressors.
EOD	Explosive Ordnance Disposal	[[]]	EOD Technicians locate, identify, render safe and dispose of all forms of ordnance (conventional, nuclear, chemical and 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.
GS GSE GSM	Gas Turbine System Technician (Electrical) (Mechanical)	[[]]	GSs operate, repair and maintain gas turbine engines; main 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 also perform administrative tasks related to gas turbine propulsion system operation and maintenance
HT*	Hull Maintenance Technician	[[]]	HTs are responsible for maintaining ships' hulls, fittings, piping systems and machinery. They install and maintain shipboard and shore based plumbing and piping systems. They also look after a vessel's safety and survival equipment and perform many tasks related to damage control.
IC	Interior Communications Electrician	[[]]	ICs operate and repair electronic devices used in the ship's interior communications systems, SITE TV systems, public address systems, electronic megaphones and other announcing equipment. They are also responsible for the gyrocompass systems.
MM	Machinist's Mate	[[]]	Continuous operation of the many engines, compressors and gears, refrigeration, air-conditioning, gas-operated equipment and other types of machinery afloat and ashore is the MM's job. They are also responsible for the ship's steam propulsion and auxiliary equipment and the outside (deck) machinery. MMs also may perform duties involving some industrial gases.
MR*	Machinery Repairman	[[]]	MRs 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 and hoists, condensers and heat exchange devices. Shipboard MRs frequently operate main propulsion machinery, besides performing machine shop and repair duties. On Submarines they are responsible for shipping and storage of torpedoes.
ND	Navy Diver	[[]]	NDs are responsible for a wide variety of underwater tasks including: Underwater ship maintenance, construction, explosive ordnance disposal (EOD), and underwater rescue. NDs are also assigned to Naval Special Warfare Units to provide diving technical expertise and supervisory support to all submersible operations.

Notes

• ^{*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.}

The following ratings have been disestablished, merged or renamed:

Warfare qualification

Also included in a sailor's rating is any "warfare qualification" earned. Obtaining such a qualification requires mastering a specified set of skills and information. For example, if Yeoman First Class Smith has earned his enlisted submarine qualification, his title would be "YN1(SS) John Smith". If Smith has multiple qualifications, they are stacked; i.e., additional quals in surface warfare would give him the title: "YN1(SS/SW) John Smith". While it may be possible to one day be "YN1(SS/SW/AW/NAC/SEAL/FPJ/MDV/EWS/SWCC/SCWS/IUSS/FMF) John Smith, it is highly unlikely; to date, the most designators earned by a single sailor is six.

Not all warfare qualifications have a corresponding 2-4 letter abbreviation that may be included in an enlisted member's title.

Aviation Warefare

Abbr.	Rating	Insignia	Description
AW	Aviation Warfare Specialist		the insigina recognizes those members of the Navy’s enlisted force who have acquired the specific professional skills, knowledge, and military experience that result in qualification for service in the aviation activities of the Navy. This includes most personnel who are trained flight deck personnel onboard aircraft carriers, or maintenance personnel at an Aircraft Intermediate Maintenance Detachment or Department or aircraft squadron.
NAC	Naval Aircrewman	File:NavyAircrew.jpg	The insignia is authorized for personnel who have undergone extensive training in flight operations of naval aircraft. Such training includes weapons management, electronic warfare, and water survival

Construction Battalion

Abbr.	Rating	Insignia	Description
SCW	Sea Combat Warfare		The insignia is awarded the Seabee Combat Warfare Badge, a service member must have completed the prescribed Naval Construction Battalion Personal Qualification Standards (PQS), which entails required coursework, qualification tasks standards, and a written examination. Upon final completion of all prescribed training, an oral board must be successfully completed before the Seabee Combat Warfare Badge may be presented.

Diving

Abbr.	Rating	Insignia	Description
DSW	Diving Salvage Warfare Specialist	N/A	Signifies a diver has excelled in competency and professionalis, and formally recognizes initiative, technical competence, and readiness for for increased responsibility.
DV*	Diver	File:2ndclassdiverbadge.JPG	The diver insignia is issued in two classes to members who have sucessfully completed diving qualifactions.
MDV*	Master Diver	File:NavyMasterDiver.jpg	Master Divers are the most qualified divers in the Navy and must first be a Chief Petty Officer before applying to become a Master Diver.
EWS	Explosive Ordnance Disposal Warfare Specialist	File:NavyEODPin.jpg	The insignia recognizes those service members who are specially trained to deal with the construction, deployment, disarmament, and disposal of high explosives munitions and may include other types of ordnance such as Nuclear, Biological and Chemical weapons along with improvised explosive devices (IED) and improvised nuclear devices (IND). Also known as the “EOD Badge” or "Crab",

• ^{*DV and MDV are mutually exclusive; that is, a person can only hold one of these at a time.}

Expeditionary Warfare

Abbr.	Rating	Insignia	Description
EXW	Expeditionary Warfare Specialist		The insignia identifies naval personnel serving in a maritime security or maritime combat related role who have earned a warfare qualification. Core qualification skills will include weapons qualification and maintenance, marksmanship, land navigation, field communications, and expeditionary camp deployment.

Instruction and Training

Abbr.	Rating	Description
MTS*	Master Training Specialist	This designation is issued to personel who demonstrate highly effective teaching skills and a comprehensive knowledge of training management, administration, and curriculum development while. The Navy recognizes only the top 10% of its instructional staff with this designation which is accomplished through exceptional attention to detail both in and out of the classroom.

• ^{*The MTS designator does not qualify as an identifer that an enlisted member may include in his/her written title.}

Special Warfare

Abbr.	Rating	Insignia	Description
SEAL	Special Warfare Specialist (or Navy SEAL)	File:Sealtrident.jpg	The badge recognizes those service members who have completed the Navy’s Basic Underwater Demolition/SEAL course, or BUD/S training, and have been designated as U.S. Navy SEALs. The badge is unique in the Navy in that it is one of the few badges issued in a single grade for both officers and enlisted personnel.
SWCC	Special Warfare Combatant-Craft Crewman	File:SpecCombatBadge.png	This badge is issued to service members must pass SWCC school, complete their probationary period, and pass other schools such as SERE. They must also undergo further training in small arms and mounted weapons use, land and maritime navigation, riverine or coastal combat tactics, survival and emergency damage control skills, emergency medical skills, and close quarters naval combat.
PJ*	Basic (or Static-Line) Navy Parachutist		The basic parachute badge is issued to Navy personnel that have completed basic static line parachute training.
FPJ*	Free-Fall Navy Parachutist		The Naval parachutist badge is issued to Navy personnel that have successfully completed 10 qualifying jumps.

• ^{* PJ and FPJ are mutually exclusive; that is, a person can only hold one of these at a time.}

Submarine Warfare

Abbr.	Rating	Insignia	Description
SS	Enlisted Submarine Warfare Specialist	File:SubEnlist.jpg	This badge also known as "dolphins" or "fish" indicate that they a sailor is qualified in submarines. The Submarine Warfare insignia is considered one of the Navy's three major warfare pins (and is the oldest). To earn the right to wear the pin, sailors complete an extensive qualification process that lasts about one year which covers virtually all of the submarine's systems onboard.

Surface Warfare

Abbr.	Rating	Insignia	Description
SW	Enlisted Surface Warfare Specialist	File:Esws.jpeg	This Badge (also known as the "ESWS pin") is authorized for wear by any enlisted member of the United States Navy who is permanently stationed aboard a navy afloat command and completes the Enlisted Surface Warfare qualification program and personal qualification standards (PQS). For those who possess "underway rates", that is to say enlisted ratings which may only be assigned onboard underway vessels, the badge must be obtained after three years as a Second Class Petty Officer.

Undersea Warfare

Abbr.	Rating	Insignia	Description
IUSS	Integrated Undersea Surveillance System Specialist	File:SeaHorsePinE.jpg	This badge is awarded to service members that have completed initial sonar technology training followed by 18-24 months of field experience in naval undersea surveillance. The badge is only presented following completion of prescribed personal qualification standards (PQS), as well as a successful completion of a written and oral examination board.

Changed or Disestablished Ratings

Abbr.	Rating	Note
AK	Aviation Storekeeper	Merged into SK on 1 January 2003
AMH	Aviation Structural Mechanic (Hydraulics)	Merged into AM on 1 March 2001
AMS	Aviation Structural Mechanic (Structures)	Merged into AM on 1 March 2001
ASE	Aviation Support Equipment Technician (Electrical)	Merged into AS in 1990
ASH	Aviation Support Equipment Technician (Hydraulics and Structure)	Merged into AS in 1990
ASM	Aviation Support Equipment Technician (Mechanical)	merged into AS in 1990
AQ	Aviation Fire Control Technician	Merged into AT in 1991
AX	Aviation Anti-Submarine Warfare Technician	Merged into AT in 1991
BT	Boiler Technician	Merged into MM on 1 October 1996
CTO	Cryptologic Technician (Communications)	Merged into IT on 1 March 2006
DP	Data Processing Technician	Merged into IT on 19 February 1998
DK	Disbursing Clerk	Merged into PS on 1 October 2005
DM	IllustratorDraftsman	Merged into MC on 01 July 2006
DS	Data Systems Technician	Merged into ET and FC on 1 October 1998
DT	Dentalman	Merged into HM on 30 August 2005
EW	Electronic Warfare Technician	Merged into CT on 1 October 2003
IM	Instrumentman	Disestablished on 01 October 1999
JO	Journalist	Merged into MC on 1 July 2006
LI	Lithographer	Merged into MC on 1 July 2006
ML	Molder	Disestablished on 1 October 1997
MS	Mess Management Specialist	Changed to CS on 15 January 2004
OM	Opticalman	Disestablished on 1 October 1999
OT	Ocean Systems Technician	Merged into STG on 1 October 1997
PH	Photographers Mate	Merged into MC on 1 July 2006
PM	Patternmaker	Disestablished on 1 October 1997
PN	Personnelman	Merged into PS on 1 October 2005
RM	Radioman	Changed to IT on 4 November 1999
SM	Signalman	Disestablished on 4 November 2003

See also

• List of Naval Officer Designators

External links

• NAVPERS 18068F Navy Enlisted Occupational Standards; also available as a PDF file
• Navy Ratings, Past and present
• Navy Speciality ratings & Emergency ratings
• Enlisted Rating Insignia