US Army MOS Listings – Vietnam Era
Vietnam-era MOS codes: Army
- 000 General Military Duty
- 0001 Duties Unassigned
- 0002 General Officer
- 0003 “Relieved From Duty, Sick in Hospital or Quarters”
- 0005 ROTC Officer Awaiting Entry On Active Duty
- 0006 Student Officer
- 0009 Special Assignment
- 001A Unqualified in Authorized Warrant Officer MOS
- 002A Patient
- 0030 Postal Officer
- 0030 Sports Specialist
- 003A Student
- 004A Duties Unassigned or In Transit
- 00B Diver
- 00C Dog Trainer
- 00D Special Duty Assignment
- 00E Recruiter And Career Counselor
- 00F Drill Sergeant
- 00G Target Aircraft Crewman
- 00H Enlisted Aide
- 00J Club/Community Activities Manager
- 00U Race/Relations/Equal Opportunity Specialist
- 00Z Command Sergeant Major
- 01B Electrical-Electronic Engineering Assistant
- 01C Mechanical Engineering Assistant
- 01D Civil Engineering Assistant
- 01E Mathematics Statistics Assistant
- 01F Physical Sciences Assistant
- 01G Chemical Engineering Assistant
- 01H Biological Sciences Assistant
- 01K Personnel Psychology Specialist
- 01L Audit Specialist
- 0205 Communications & Electronics Staff Officer
- 0213 Post Communication Electronics Officer
- 021A Club Manager
- 0220 Area Signal Center Officer
- 0221 Communications Center Officer
- 02B Band Member Coronet Or Trumpet Player
- 02C Band Member Baritone Or Euphonium Player
- 02D Band Member French Horn Player
- 02E Band Member Trombone Player
- 02F Band Member Tuba Player
- 02G Band Member Flute Or Piccolo Player
- 02H Band Member Oboe Player
- 02J Band Member Clarinet Player
- 02K Band Member Basoon Player
- 02L Band Member Saxaphone Player
- 02M Band Member Percussion Player
- 02N Band Member Piano Player
- 02P Brass Group Leader
- 02Q Woodwind Group Leader
- 02R Percussion Group Leader
- 02S Special Band Member
- 02T Band Member Guitar Player
- 02Z Bands Senior Sergeant
- 0300 Fixed Plant Signal Unit Commander
- 031A Bandmaster
- 031C No occupational title data available
- 03B Performing Arts Specialist
- 03C Physical Activities Specialist
- 03D Arts And Crafts Specialist
- 03Z Recreation Specialist
- 03Z Special Services Senior Sergeant
- 0405 Telephone-Digital Communications Officer
- 0425 Cable Communications Officer
- 04B Translator-Interpreter
- 04C Expert Linguist
- 0505 Radio Systems Officer
- 051A Veterinary Services Technician
- 052A Non-Morse Intercept Technician
- 053A Special Identification Technician
- 0590 Radio Controlled Target Airplane Officer
- 05B Radio Operator
- 05C Radio Teletype Operator
- 05D EW/SIGINT Identifier
- 05E Voice-Radio Operator
- 05F Radio Teletypewriter Operator
- 05G Signal Security Specialist
- 05H EW/SIGINT Morse Interceptor
- 05K EW/SIGINT Non-Morse Interceptor
- 0600 Motor Officer
- 0605 Nurse Anesthetist
- 0609 Highway Transport Planning Officer
- 0612 Field Transportation Officer
- 0615 Highway Traffic Engineer
- 061C “Airplane Pilot, Multi-engine”
- 062B “Helicopter Pilot, Utility and Light Cargo Single Rotor”
- 062C “Helicopter Pilot, Utility and Light Cargo Tandem Rotor”
- 062D “Helicopter Pilot, Medium Transport”
- 0660 Highway Transport Officer
- 0663 Engineer Equipment Officer
- 0668 Amphibious Craft Officer
- 0692 Transportation Officer
- 0693 Transportation Traffic Management Officer
- 0694 Transportation Movements Officer
- 0706 Trainmaster
- 0715 Railway Maintenance-Of-Way Superintendent
- 0716 Railway Bridge & Building Supervisor
- 0717 Railway Track Supervisor
- 0718 Railway Signal Maintenance Supervisor
- 0720 “Road Foreman, Railroad Locomotives”
- 0730 Yardmaster
- 0735 Railway Master Mechanic
- 0736 Railway Car Foreman
- 0737 Enginehouse Foreman
- 0740 Railway Dispatcher
- 0750 Railway Operations Superintendent
- 0753 Railway Car Service Superintendent
- 0754 Railway Equipment Superintendent
- 0801 Harbor Master
- 0804 Cargo Officer
- 0815 Port Operations Officer
- 0820 Dredge Master
- 0823 Dredge Engineering Officer
- 0825 Harbor Craft Unit Commander
- 09B Basic Trainee
- 09C Basic Trainee
- 09D College Trainee
- 09E Wac Trainee
- 09F Chaplain’s Assistant (Catholic)
- 09G Chaplain’s Assistant (Protestant)
- 09H Chaplain’s Assistant (Jewish)
- 09S Commissioned Officer Candidate
- 09W Warrant Officer Candidate
- 100B Utility/Observation Helicopter Pilot
- 100C Cargo Helicopter Pilot
- 100D Heavy Lift Helicopter Pilot
- 100E Attack Helicopter Pilot
- 100F “Pilot, OH-6”
- 100G “Pilot, OH-58”
- 100P “Pilot, U-8”
- 100Q Combat Service/Support Fixed Wing Pilot
- 100R Combat Surveillance Fixed Wing Pilot
- 100Z “Pilot, Nonstandard Aircraft”
- 1010 Combat Signal Unit Commander
- 101B “Fixed Wing Pilot, Single Engine”
- 101C “Fixed Wing Pilot, Multi-engine”
- 101D “Fixed Wing Pilot, Surveillance Aircraft”
- 102A Rotary and Fixed Wing Pilot
- 103A Aviation Technician
- 1111 Safeguard Unit Commander
- 1115 Safeguard Staff Officer
- 1154 Field Artillery Target Acquisition Officer
- 1174 Light Air Defense Artillery Unit Commander
- 1176 Composite Aaa Unit Commander
- 1177 “Air Defense Missile Staff Officer, Nike Hercules”
- 1178 “Air Defense Missile Staff Officer, Hawk”
- 1180 Air Defense Missile Unit Commander
- 1181 Guided Missile Systems Officer
- 1183 Reconnaissance & Survey Officer
- 1190 Ballistic Missile Unit Commander
- 1193 Field Artillery Unit Commander
- 1198 Field Illumination Unit Commander
- 11B Infantryman
- 11C Indirect Fire Infantryman
- 11D Armor Reconnaissance Specialist
- 11E Armor Crewman
- 11F Infantry Operations And Intelligence Specialist
- 11G Infantry Senior Sergeant
- 11H Infantry Direct Fire Crewman
- 11Z Infantry Senior Sergeant
- 1203 Tank Unit Commander
- 1204 Armored Reconnaissance Unit Commander
- 1210 Armored Combat Command Commander
- 12A Pioneer
- 12B Combat Engineer
- 12C Bridge Crewman
- 12D Combat Engineer Operation And Intelligence NCO
- 12D Power Bridge Specialist
- 12E Atomic Demolition Munitions Specialist
- 12F Combat Engineer Tracked Vehicle Crewman
- 12Z Combat Engineer Senior Sergeant
- 1328 Engineer Construction Unit Commander
- 1330 Armored Engineer Unit Commander
- 1331 Combat Engineer Unit Commander
- 1342 Portable Bridge Unit Commander
- 1367 Amphibious Engineer Unit Commander
- 13A Field Artillery Basic
- 13B Cannon Crewmember
- 13C Heavy Field Artillery Crewman
- 13D Field Artillery Rocket Crewman
- 13E Cannon Fire Direction Specialist
- 13F Automatic Weapons Crewman
- 13Z Field Artillery Senior Sergeant
- 1415 Chemical Combat Support Unit Commander
- 1542 Infantry Unit Commander
- 1543 Infantry Heavy Mortar Unit Commander
- 1560 Infantry Unit Commander (Mechanized)
- 15B Sergeant Missile Crewman
- 15C CORPORAL Missile Crewman
- 15D Lance Crewmember/MLRS Sergeant
- 15E PERSHING Missile Crewmember
- 15F HONEST JOHN Rocket Crewmember
- 15F REDSTONE Missile Crewman
- 15J MLRS/Lance Operations/Fire Direction Specialist
- 15Z FA Missile Rocket Senior Sergeant
- 1690 Military Intelligence Unit Commander
- 1691 Army Cryptologic & Electronic Warfare Unit Commander
- 16B HURCULES Missile Crewmember
- 16C HURCULES Fire Control Crewmember
- 16D HAWK Missile Crewmember
- 16E HAWK Fire Control Crewmember
- 16F Light Air Defense Artillery Crewmember
- 16H Air Defense Artillery Operations/Intelligence Assistant
- 16J Forward Area Alerting Radar Operator
- 16K Fire Distribution Systems Crewman
- 16M Safeguard Operations and Intelligence Specialist
- 16P CHAPARRAL Crewmember
- 16R VULCAN Crewmember
- 16Z Air Defense Artillery Senior Sergeant
- 17A Combat Surveillance And Target Acquisition Crewman
- 17B Field Artillery Radar Crewmember
- 17C Field Artillery Target Acquisition Specialist
- 17D Flash Ranging Crewman
- 17E Field Illumination Crewman
- 17F Defense Acquisition And Survival Radar Crewman
- 17G Tracking Radar Crewman
- 17H Fire Distribution System Crewman
- 17J Drone Aircraft Crewman
- 17K Ground Surveillance Radar Crewman
- 17L Aerial Sensor Specialist
- 17M Remote Sensor Specialist
- 17Z Combat Surveillance And Target Acquisition NCO
- 1980 Fixed Wing Aviation Unit Commander
- 1981 Rotary Wing Aviation Unit Commander
- 1982 Airfield Commander
- 1984 Supply Plans Officer
- 1985 Supply Research & Development Officer
- 1987 Composite Aviation Unit Commander
- 2010 Chief of Staff
- 2011 Secretary of The General Staff
- 2015 Congressional Liaison Officer
- 2019 Post Commander
- 201A Meteorology Technician
- 2025 Major Departmental Unit Chief or Director
- 202A Biomedical Equipment Repair Technician
- 2030 Aide-De-Camp
- 2040 Test & Evaluation Officer
- 2110 Adjutant or Adjutant General
- 211A Target Acquisition Radar Technician
- 2120 Administrative Officer
- 212B “Field Artillery Missile Assembly Technician, Corporal”
- 2136 Nontactical Unit Officer
- 213B “Field Artillery Missile Fire Control Technician, Corporal”
- 2145 WAC Staff Adviser
- 214C “Field Artillery Missile System Technician, LaCross”
- 214D “Field Artillery Missile System Technician, Redstone”
- 214E “Missile System Technician, Pershing”
- 214F Field Artillery Missile System Technician (Sergeant)
- 2162 “Operations & Training Staff Officer (G3, S3)”
- 2163 “Air Operations Officer (G3, S3)”
- 2167 Research & Development Coordinator
- 2170 Technical Operations Officer
- 2180 “Civil-Military Operations Staff Officer (G5, S5)”
- 21A Ballistic Missile Repair Apprentice
- 21B REDSTONE Electronic Mechanic
- 21C REDSTONE Guidance Repairman
- 21D REDSTONE Test Instrument Repairman
- 21E Sergeant Guidance Repairman
- 21F Sergeant Test Station Repairman
- 21G PERSHING Electronics Materiel Specialist
- 21H PERSHING Guidance And Control Repairer
- 21J PERSHING Test Equipment Repairman
- 21K PERSHING Computer Repairman
- 21L PERSHING Electronic Repairer
- 21M PERSHING Digital Equipment Repairer
- 21R Sergeant Firing Set Repairman
- 21S Sergeant Missile Guidance Repairman
- 21T Sergeant Test Equipment Repairman
- 21U Sergeant Maintenance Chief
- 21V PERSHING Maintenance Chief
- 2200 Personnel Officer
- 2210 Personnel Management Officer
- 221B “Missile Assembly Technician, Nike”
- 221C “Missile Maintenance Technician, Safeguard”
- 222B “Missile Fire Control Technician, Nike”
- 2239 Psychological Assistant
- 223C Air Defense Missile System Technician (Hawk)
- 223D “Air Defense Missile System Technician, Improved Hawk”
- 224B Chaparral-Vulcan Systems Technician
- 225B ADA Command and Control Maintenance Technician
- 2260 “Personnel Staff Officer (G1, S1)”
- 2265 Manpower Control Officer
- 226B Missile Site Radar Maintenance Technician
- 226C Perimeter Acquisition Radar Manitenance Technician
- 22A Electronic Repair Apprentice
- 22B CORPORAL Electronics Mechanic
- 22C CORPORAL Missile Repairman
- 22F HURCULES Electronics Mechanic
- 22G NIKE Launcher System Repairman
- 22H NIKE Internal Guidance Repairman
- 22J HAWK Missile Launcher Mechanic
- 22K HAWK Missile-Launcher Repairer
- 22L NIKE-HURCULES Test Equipment Repairer
- 22M NIKE Missile Repairman
- 22N NIKE-HURCULES Missile-Launcher Repairer
- 2310 Recruiting & Induction Officer
- 231A Air Defense Artillery Fire Control Maintenance Technician
- 232A Fire Control Radar Technician
- 2330 Labor Relations Officer
- 2334 Selective Service Officer
- 2350 Race Relations/Equal Opportunity Officer
- 23B CORPORAL Fire Control Mechanic
- 23C CORPORAL Fire Control Repairman
- 23G NIKE-HURCULES Fire Control Mechanic
- 23M NIKE Acquisition Radar Repairman
- 23N NIKE-HURCULES Track Radar Repairer
- 23P HAWK Fire Control Mechanic
- 23Q HAWK Fire Control Repairer
- 23R HAWK Continuous Wave Radar Mechanic
- 23S HAWK Pulse Radar Repairer
- 23T HAWK Continuous Wave Radar Repairer
- 23U NIKE-HURCULES High Power Radar Simulator Repairer
- 23V HAWK Maintenance Chief
- 23W NIKE Maintenance Chief
- 2401 “ADP Officer, PCM”
- 2402 ADP Officer
- 241B “Field Artillery Missile System Repair Technician, Corporal”
- 241C “Field Artillery Missile System Repair Technician, LaCross”
- 241D “Field Artillery Missile System Repair Technician, Redstone”
- 241E “Field Artillery Missile Systems Repair Technician, Sergeant”
- 241F “Field Artillery Missile Systems Repair Technician, Pershing”
- 2420 Archivist
- 2421 Military Historian
- 2430 Memorial Activities Officer
- 24B HAWK Continuous Wave Radar Mechanic
- 24C HAWK Firing Section Mechanic
- 24D HAWK Missile Launcher Mechanic
- 24E HAWK Fire Control Mechanic
- 24F HAWK Fire Control Mechanic
- 24G HAWK Information Coordination Central Mechanic
- 24H HAWK Fire Control Repairer
- 24J HAWK Pulse Radar Repairer
- 24K HAWK Continuous Wave Radar Repairer
- 24M VULCAN System Mechanic
- 24N CHAPARRAL System Mechanic
- 24P Defense Acquisition Radar Mechanic
- 24Q NIKE-HURCULES Fire Control Mechanic
- 24U NIKE-HURCULES Custodial Mechanic
- 24V HAWK Maintenance Chief
- 2500 School Commandant
- 2510 Adviser Group Commander/Senior Adviser (Reserve Component)
- 2517 Professor of Military Science
- 2518 Aviation Staff Officer
- 251B “Air Defense Missile System Repair Technician, Nike”
- 251C “Air Defense Missile System Repair Technician, Hawk”
- 251D “Air Defense Missile System Repair Technician, Improved Hawk”
- 2520 Training Officer
- 252A Test Measuring and Diagnostic Equipment Support Technician
- 2548 Training Aids Officer
- 25B Automatic Data Link Repairman
- 25C Integrated Data Link Repairman
- 25D Birdie Repairman
- 25E Radar Tracking Station Repairman
- 25F Radar Display Equipment Repairman
- 25G Mobil Adcp Monitor Repairman
- 25H Radar Data Processing Equipment Repairman
- 25J Operations Central Repairer
- 25K AN/TSQ-51 System Repairer Maintenance Chief
- 260A Nuclear Weapons Technician
- 2610 Management Analyst
- 2615 Organization & Equipment Planning Officer
- 261A Special Ammunition Maintenance Technician
- 2622 Training Center Unit Officer
- 2624 Logistical Commander
- 2625 Logistics Officer
- 262A Nuclear Weapons Electronic Technician
- 2640 Troop Movements Officer
- 26B Weapons Support Radar Repairer
- 26C Target Acquisition Surveillance Radar Repairer
- 26D Ground Control Approach Radar Repairer
- 26E Airborne Sensor Specialist
- 26F Ground Radar Repairman
- 26G Ground Control Approach Radar Repairman
- 26H Air Defense Radar Repairer
- 26J Defense Acquisition Radar Mechanic
- 26K Aerial Early Warning/Defense Equipment Repairer
- 26K Electronic Warfare Equipment Repairman
- 26L Tactical Microwave Systems Repairer
- 26M Airborne Surveillance Radar Repairer
- 26N Aerial Surveillance Infrared Repairer
- 26P Radio Propogation Specialist
- 26T Radio/TV Systems Specialist
- 26U Unattended Ground Sensor Systems Repairman
- 26V Strategic Microwave Systems Repairer
- 26W Radar Maintenance Supervisor-Inspector
- 26Y Satellite Communications Equipment Repaier
- 2701 Nonmilitary Subjects Instruction Officer (Designated Subject)
- 2715 Military Leadership Instructor
- 271A Land Combat Missile Systems Repair Technician
- 2720 Civil Defense Officer
- 2728 Military College Faculty Member
- 27A Missile Systems Apprentice
- 27B Land Combat Support System (LCSS) Test Specialist
- 27C Combat Missile Systems Repairman
- 27D Lance Missile System Repairman
- 27E TOW/Dragon Missile Electronics Repairer
- 27F VULCAN Repairer
- 27G CHAPARRAL/REDEYE Repairer
- 27H Shillelagh Repairer
- 27Z Land Combat/air Defense Systems Maintenance Chief
- 2800 Comptroller
- 2801 “Comptroller Staff Officer, Army General Staff”
- 281A Radio Repair Technician
- 282A Radar Repair Technician
- 283A Electronic Warfare Repair Technician
- 284A Television Repair Technician
- 285A Electronic Warfare/Intercept Equipment Repair Technician
- 286A Communications-Electronics Equipment Repair Technician
- 28B Missile Site Radar Repairman
- 28C Safeguard Digital Repairman
- 28D Perimeter Acquisition Radar Electronic Repairman
- 28M Anti-Ballistic Missile Maintenance Specialist
- 28N Safeguard Missile Site Radar Specialist
- 28P Safeguard Perimeter Acquisition Radar Specialist
- 28Q Safeguard Data Processing System Maintenance Specialist
- 28R Safeguard Dps Peripheral Equipment Maintenance Specialist
- 2900 Headquarters Unit Commander
- 2910 Service Company Commander
- 3000 Executive Medicine Officer
- 3004 Nuclear Medical Officer
- 3005 Preventive Medicine Officer
- 3006 Occupational Medicine Officer
- 3012 Health Care Administrator
- 301A Data Processing Equipment Repair Technician
- 3100 General Medical Officer
- 3101 Pulmonary Disease Officer
- 3105 Gastroenterologist
- 3107 Cardiologist
- 3108 Obstetrician & Gynecologist
- 3111 Urologist
- 3112 Dermatologist
- 3113 Allergist/Clinical Immunologist
- 3115 Anesthesiologist
- 3116 Pediatrician
- 3117 Pediatric Cardiologist
- 3118 Child Neurologist
- 3125 Ophthalmologist
- 3126 Otorhinolaryngologist
- 3127 Child Psychiatrist
- 3128 Neurologist
- 3129 Psychiatrist
- 3130 Adolescent Psychiatrist
- 3131 Neurosurgeon
- 3132 Hematologist
- 3134 Nephrologist
- 3135 Medical Oncologist
- 3136 Endocrinologist
- 3137 Rheumatologist
- 3138 Clinical Pharmacologist
- 3139 Internist
- 3140 Infectious Disease Officer
- 3141 Family Physician
- 3150 General Surgeon
- 3151 Thoracic Surgeon
- 3152 Plastic Surgeon
- 3153 Orthopedic Surgeon
- 3154 Peripheral Vascular Surgeon
- 3160 Aviation Medical Officer
- 3167 Preventive Dentistry Officer
- 3168 Endodontist
- 3170 General Dentistry Officer
- 3171 Oral Surgeon
- 3172 Pedodontist
- 3173 Orthodontist
- 3174 Periodontist
- 3175 “Prosthodontist, Removable”
- 3176 “Prosthodontist, Fixed”
- 3177 Oral Pathologist
- 3178 Dental Staff Officer
- 3179 Oral Medicine Officer
- 3180 Physiatrist
- 31B Field Communications Electronics Equipment Mechanic
- 31C Armor Radio Mechanic
- 31D Artillery Radio Mechanic
- 31D PERSHING Communications Specialist
- 31E Field Radio Repairer
- 31F Infantry Communications Chief
- 31G Tactical Communitions Chief
- 31H Artillery Communications Chief
- 31J Teletypwriter Repairer
- 31K General Cryptographic Repairman
- 31L Multichannel Communications Equipment Repairman
- 31M Multichannel Transmission Systems
- 31N Communications Systems/Circuit Controller
- 31Q Avionics Repairman
- 31R Target Aircraft Control System Mechanic
- 31S Field General Communication Security Repairer
- 31T Field Systems Communications Security Equipment Repairer
- 31U Tactical COMSEC Maintenance Chief
- 31W Tactical Electronics Maintenance Chief
- 31Z Telecommunications Operations Chief
- 3200 General Veterinary Officer
- 3201 Veterinary Public Health Officer
- 3202 Small Animal Veterinary Officer
- 3203 Veterinary Staff Officer
- 3204 Veterinary Food Hygienist
- 3205 Veterinary Laboratory Animal Officer
- 3206 Veterinary Pathologist
- 3207 Veterinary Microbiologist/Parasitologist
- 3208 Veterinary Radiobiologist/Radiologist
- 3209 Veterinary Comparative Medicine Officer
- 3210 Veterinary Laboratory Officer
- 32A Fixed Station Attendant
- 32B Fixed Station Receiver Repairman
- 32C Fixed Station Transmitter Repairman
- 32D Communications System Circuit Controller
- 32E Fixed Plant Carrier Repairman
- 32F Fixed Ciphony Repairer
- 32G Fixed Cryptographic Equipment Repairer
- 32H Fixed Station Radio Repairer
- 32Z Communications-Electronics Maintenance Chief
- 3304 Therapeutic Radiologist (Radiation Oncologist)
- 3305 Diagnostic Radiologist
- 3306 Radiologist
- 3307 Microbiologist
- 3308 Nuclear Medical Science Officer
- 3309 Biochemist
- 3310 Parasitologist
- 3311 Immunologist
- 3314 Clinical Laboratory Officer
- 3315 Entomologist
- 3316 Nutrition Officer
- 3318 Pharmacy Officer
- 3324 Anatomical Pathologist
- 3325 Pathologist
- 3326 Clinical Pathologist
- 3327 Physiologist
- 3328 Forensic Pathologist
- 3329 Neuropathologist
- 3340 Optometry Officer
- 3350 Podiatrist
- 3360 Audiologist
- 3370 Environmental Science Officer
- 3371 Sanitary Engineer
- 3380 Military Community Oral Health Manager
- 33B General Intercept Equipment Repairman
- 33C Terminal Receiving System Repairman
- 33D Intercept Recoding Systems Repairman
- 33E Microbarograph Equipment Repairman
- 33F Intercept Demultiplex Systems Repairman
- 33G ECM/DF Systems Repairman
- 33Z Intercept Systems Maintenance Supervisor-Inspector
- 3416 Occupational Therapist
- 3418 Physical Therapist
- 341A Cryptographic Equipment Repair Technician
- 3420 Hospital Dietitian
- 3430 Nurse Administrator
- 3431 Community Health Nurse
- 3437 Psychiatric/Mental Health Nurse
- 3442 Pediatric Nurse
- 3443 Operating Room Nurse
- 3445 Nurse Anesthetist
- 3446 Obstetric & Gynecologic Nurse
- 3448 Medical-Surgical Nurse
- 3449 Clinical Nurse
- 34B Punch Card Machine Repairer
- 34C ADP Auxiliary Equipment Repairman
- 34D ADPS Repairman
- 34E NCR 500 Computer Repairer
- 34F Digital Subscriber Terminal Equipment(DSTE) Repairer
- 34G Fire Control Computer Repairer
- 34H Automatic Digital Message Switch Equipment(ADMSE) Repairer
- 34J Univac 1004/1005 DCT 9000 System Repairer
- 34K IBM 3000 Repairer
- 34L ADMS Peripheral Equipment Repairman
- 34M Sds 920 Equipment Repairman
- 3506 Field Medical Assistant
- 3510 Health Services Comptroller
- 351A Power Station Technician
- 3520 Biomedical Information Systems Officer
- 3530 Patient Administration Officer
- 3560 Health Services Personnel Manager
- 3565 Health Services Manpower Control Officer
- 3570 Health Services Plans & Operations Officer
- 3581 Aeromedical Evacuation Officer
- 3590 Health Services Materiel Officer
- 3593 Health Services Intelligence Officer
- 3595 Health Facilities Planning Officer
- 35B Electronic Instrument Repairer
- 35C Electronic Devices Repairman
- 35D Meteorological Equipment Repairman
- 35E Special Electronic Devices Repairer
- 35F Nuclear Weapons Electronics Specialist
- 35G “Medical Equipment Repairer, Unit Level”
- 35H “Test, Measurement, And Diagnostic Equipment (TMDE) Maintenance Support Specialist”
- 35J Aircraft Fire Control Repairman
- 35K Avionics Mechanic
- 35L Avionic Communications Equipment Repairer
- 35M Avionic Navigation And Flight Control Equipment Repairer
- 35N Avionic Flight Control Equipment Repairman
- 35P Avionic Equipment Maintenance Supervisor
- 35R Avionic Special Equipment Repairer
- 35S Electronic Biomedical Equipment Repairer
- 35T X-ray Biomedical Equipment Repairer
- 35U “Medical Equipment Repairer, Advanced”
- 3606 Social Work Officer
- 361A Fire Distribution Systems Repair Technician
- 3620 Psychologist
- 3621 Health Services Research Psychologist
- 3639 Behavioral Science Associate
- 36A Wireman
- 36B Telephone Installer-Repairman
- 36C Wire Systems Installer
- 36D Antenna Installer Specialist
- 36E Cable Splicer
- 36F Circuit Control Specialist
- 36G Manual Central Office Repairman
- 36H Dail/Manual Central Office Repairer
- 36K Tactical Wire Operations Specialist
- 3900 Medical Unit Commander
- 4010 “Supply Staff Officer (G4, S4)”
- 4011 Maintenance Staff Officer
- 4112 Club Manager
- 4114 Food Adviser
- 411A Ammunition Technician
- 4130 Subsistence Officer
- 41B Topographic Instrument Repair Specialist
- 41C Fire Control Instrument Repairer
- 41D Watch Repairman
- 41E Audio-Visual Equipment Repairer
- 41F Projector Repairman
- 41G Aerial Surveillance Photographic Equipment Repairer
- 41H Photographic Equipment Repair Chief
- 41J Office Machine Repairer
- 41K Reproduction Equipment Repair Specialist
- 4200 Supply & Service Officer
- 4201 Supply Management Officer
- 4210 Army Exchange Officer
- 421A Armament Repair Technician
- 4223 Commissary Officer
- 42B Cast Specialist
- 42C Orthotic Specialist
- 42D Dental Laboratory Specialist
- 42E Optical Laboratory Specialist
- 42F Dental Fixed Prosthetic Specialist
- 4300 Materiel Project/Product Manager
- 4312 Real Estate Officer
- 4319 Procurement Control & Production Officer
- 4320 Procurement Officer
- 4360 Printing Officer
- 4371 Dog Handling Officer
- 43A Textile And Leather Repair Assistant
- 43B Textile Repairman
- 43C Canvas And Leather Repairman
- 43D Shoe Repairman
- 43E Parachute Rigger
- 43J Textile Repairman
- 43K Canvas Repairman
- 43L Shoe Repairman
- 43M Fabric Repair Specialist
- 4403 Foreign Aid Supply Officer
- 441A Repair Shop Technician
- 4420 Aircraft Supply Officer
- 4445 Storage Officer
- 4475 Railway Supply Officer
- 44A Metal Working Assistant
- 44B Metal Worker
- 44C Welder
- 44D Blacksmith
- 44E Machinist
- 44K Marine Hull Repairman
- 44Z Metal Working Foreman
- 4510 Unit Ammunition Officer
- 4514 Conventional Ammunition Officer
- 4515 Missile & Munitions Officer
- 4516 Missile Maintenance Officer
- 4517 Special Ammunition Officer
- 45A Armament Maintenance Apprentice
- 45B Small Arms/Artillery Repairer
- 45C Field Artillery Repairman
- 45D Artillery Calibration Specialist
- 45E Air Defense Artillery Repairman
- 45F Artillery Mechanic
- 45G Turret Artillery Repairman
- 45H Small Missile Systems Repairman
- 45J Aircraft Armament Repairman
- 45K Armament Repairer
- 45L Artillery Repairer
- 45M Aircraft Armament Subsystem Mechanic
- 45N M60A1/A3 Tank Turret Mechanic
- 45P Sheridan Turret Mechanic
- 45R M60A2 Tank Turret Mechanic
- 45Z Armament/Fire Control Maintenance Supervisor
- 4600 Property Disposal Officer
- 4601 Salvage Collecting Officer
- 461A Airdrop Equipment Repair Technician
- 46A Missile Mechanical Repair Apprentice
- 46C HURCULES Missile Mechanic
- 46D Improved HAWK Mechanical Systems Repairman
- 46D NIKE Mechanical Repairman
- 46F HAWK Mechanical Repairman
- 46G CORPORAL Missile Crewman
- 46H CORPORAL Ground Handling Equipment Repairman
- 46J REDSTONE Missile Mechanic
- 46K REDSTONE Propulsion/Structures Repairman
- 46L Sergeant Electrical Mechanical Repairman
- 46M PERSHING Rocket Motor/Structures Repairman
- 46N PERSHING Electrical-Mechanical Repairer
- 4803 Maintenance Officer
- 4804 Marine Maintenance Officer
- 4808 Armament Maintenance & Repair Officer
- 4815 Mechanical Maintenance Officer
- 4818 Tire Maintenance & Repair Officer
- 4820 Parachute Maintenance & Aerial Supply Officer
- 4823 Aircraft Maintenance Officer
- 4825 Electronics Maintenance Officer
- 4830 Laundry & Fumigation Officer
- 4850 Railway Shop Superintendent
- 4851 Car Repair Shop Superintendent
- 4857 Railway Machine Shop Superintendent
- 4862 Diesel Locomotive Shop Superintendent
- 4940 Water Supply Unit Commander
- 4942 Forestry Officer
- 4944 Gas Generating Unit Commander
- 4960 Petroleum Products Supply Officer
- 5000 Recreation Services Officer
- 51A Construction And Utilities Worker
- 51B Carpentry And Masonry Specialist
- 51C Structure Specialist
- 51D Mason
- 51E Camouflage Specialist
- 51F Pipeline Specialist
- 51G Materials Quality Specialists
- 51H Construction Engineering Supervisor
- 51J Heating And Ventilating Specialist
- 51L Refrigeration Specialist
- 51M Firefighter
- 51N Water Treatment Specialist
- 51P Utilities Engineering Supervisor
- 51Q Terrain Analyst
- 51R Interior Electrician
- 51S Tactical Support Environmental Equipment Repairman
- 521A Utilities Maintenance Technician
- 521B No occupational title data available
- 521C Tactical Support Equipment Maintenance Technician Safeguard
- 5241 Army Band Officer
- 52A Powerman
- 52B Power Generation Equipment Operator/Mechanic
- 52C Utilities Equipment Repairer
- 52D Power-Generation Equipment Repairer
- 52E Prime Power Production Specialist
- 52F Electrician
- 52G High Voltage Electrician
- 52H Nuclear Power Plant Mechanic/Operator
- 52J Nuclear Power Plant Electrician/Operator
- 52K Nuclear Power Plant Instrument/Operator
- 52L Nuclear Power Plant Processing/Control Specialist
- 52M Nuclear Power Plant Chief
- 52N Tactical Support Electrical Equipment Repairman
- 52W Tactical Support Equipment Maintenance And Repair Supervisor
- 5310 Chaplain
- 53B Industrial Gas Production Specialist
- 53C Carbon Dioxide-Hydrogen Production Specialist
- 53D Liquid-Oxygen-Nitrogen Production Specialist
- 5400 Publications Officer
- 54A Chemical Operations Specialist
- 54B Decontamination Specialist
- 54C Smoke Operations Specialist
- 54D Chemical Equipment Repairer
- 54E “Nuclear, Biological, And Chemical (NBC) Specialist”
- 54F Chemical Operations Specialist
- 5503 Public Education Officer
- 5505 Information Officer
- 5522 Broadcast Officer
- 5525 Physical Reconditioning Officer
- 55A Ammunition Helper
- 55B Ammunition Specialist
- 55C Ammunition Maintenance Specialist
- 55D Explosive Ordnance Disposal (EOD) Specialist
- 55E Chemical Demolitions Specialist
- 55F Missile And Rocket Explosive Specialist
- 55G Nuclear Weapons Specialist
- 55X Ammunition Inspector
- 55Z Ammunition Supervisor
- 561A Master or Mate
- 561B Harbormaster/Pilot
- 561C “Vessel Master, Unlimited”
- 561D “Vessel Master, Coastal; Mate, Unlimited”
- 561E Mate
- 562A Marine Engineering Technician
- 562B Marine Engineering Technician/Marine Inspector
- 562C “Chief Engineer, Unlimited”
- 562D “Chief Engineer, Coastal; Assistant Engineer, Unlimited”
- 562E Assistant Engineer
- 56A Supply Handler
- 56B General Warehouseman
- 56C Petroleum Storage Specialist
- 56D Subsistance Storage Specialist
- 56E Stevedore
- 57A Duty Soldier
- 57B Railway Section Foreman
- 57C Tire Repairman
- 57D Sawyer
- 57E Laundry And Bath Specialist
- 57F Mortuary Affairs Specialist
- 57G Duty Foreman
- 57H Cargo Specialist
- 5900 Public Welfare Officer
- 6010 Public Finance Officer
- 6100 Finance & Accounting Officer
- 6101 Accounting Officer
- 61A Seaman
- 61B Watercraft Operator
- 61C Watercraft Engineer
- 61D Amphibian Operator
- 61E Amphibian Engineer
- 61F Marine Hull Repairer
- 61Z Marine Senior Sergeant
- 6200 Finance Staff Officer
- 6201 Finance Disbursing Officer
- 621A Engineer Equipment Repair Technician
- 62A Engineer Equipment Assistant
- 62B Construction Equipment Repairer
- 62C Engineer Missile Equipment Specialist
- 62D Asphalt Equipment Operator
- 62E Heavy Construction Equipment Operator
- 62F Crane Operator
- 62G Quarrying Specialist
- 62H Concrete And Asphalt Equipment Operator
- 62J General Construction Equipment Operator
- 62K Grader Operator
- 62L Wheeled Tractor Operator
- 62M Rough Terrain Forklift And Loader Operator
- 62N Construction Equipment Supervisor
- 62P Tactical Support Mechanical Equipment
- 6302 Program/Budget Officer
- 631A Automotive Maintenance Technician
- 632A Automotive Repair Technician
- 63A Mechanical Maintenance Helper
- 63B Light-Wheel Vehicle Mechanic
- 63C General Vehicle Repairman
- 63D Quartermaster Light Equipment Repairman
- 63E Quartermaster Heavy Equipment Repairman
- 63F Recovery Specialist
- 63G Fuel And Electrical Systems Repairer
- 63H Track Vehicle Repairer
- 63J Quartermaster And Chemical Equipment Repairer
- 63K Quartermaster Heavy Equipment Repairman
- 63L Quartermaster Equipment Maintenance Senior
- 63Z Mechanical Maintenance Supervisor
- 6400 Statistician
- 6410 Economist
- 64A Light Vehicle Driver
- 64B Heavy Vehicle Driver
- 64C Motor Transport Operator
- 65A Railway Maintenance And Operations Apprentice
- 65B Locomotive Repairer
- 65C Diesel-electrical Locomotive Repairman
- 65D Railway Car Repairer
- 65E Airbrake Repairer
- 65F Locomotive Electrician
- 65G Railway Section Repairer
- 65H Locomotive Operator
- 65J Train Crewmember
- 65K Railway Movement Coordinator
- 65Z Railway Senior Sergeant
- 66A Railway Operations Apprentice
- 66B Locomotive Operator
- 66C Trainman
- 66D Railway Movement Coordinator
- 671B “Aircraft Repair Technician, Non-rated”
- 671C “Aircraft Repair Technician, Rotary Wing Rated”
- 671D “Aircraft Repair Technician, Fixed Wing Rated”
- 671E “Aircraft Repair Technician, Rotary & Fixed Wing Rated”
- 67A Aircraft Maintenance Apprentice
- 67B O-1/U-6 Airplane Repairman
- 67C U/A Airplane Repairman
- 67D Single-Engine Airplane Repairman
- 67E Single-Engine Airplane Maintenance Chief
- 67F Airplane Technical Inspector
- 67G Utility Airplane Repairer
- 67H 0V-1 Airplane Repairman
- 67J Multi-Engine Medium Transport Airplane Mechanic
- 67K Multi-Engine Airplane Repairman
- 67L Multi-Engine Airplane Maintenance Chief
- 67M OH-13/OH-23 Helicopter Repairman
- 67N UH-1 Helicopter Repairer
- 67P CH-34 Helicopter Repairman
- 67Q Single-Engine Single-Rotor Helicopter Repairman
- 67R OH-58 Helicopter Repairman
- 67R Single-Engine Single-Rotor Helicopter Maintenance Chief
- 67S Single-Engine Tandem-Rotor Helicopter Mechanic
- 67T CH-37 Helicopter Repairman
- 67U CH-47 Helicopter Repairer
- 67V Observation/Scout Helicopter Repairer
- 67W Aircraft Quality Control Supervisor
- 67X Heavy Lift Helicopter Repairer
- 67Y AH-1 Attack Helicopter Repairer
- 67Z Aircraft Maintenance Senior Sergeant
- 68A Aircraft Components Repair Apprentice
- 68B Aircraft Powerplant Repairer
- 68C Aircraft Reciprocating Engine Repairman
- 68D Aircraft Powertrain Repairer
- 68E Aircraft Rotor And Propeller Repairman
- 68F Aircraft Electrician
- 68G Aircraft Structural Repairer
- 68H Aircraft Pneudraulics Repairer
- 68J Aircraft Instrument Repairman
- 7004 Division Engineer
- 7010 Engineer Staff Officer
- 7020 Public Works & Utilities Officer
- 70A Clerk
- 7110 Construction Engineer
- 711A Personnel/Administrative Technician
- 712A General Staff Administrative Technician
- 7130 Facilities Engineer
- 713A Legal Administrator
- 7140 Highway Engineer
- 71A Clerk
- 71B Clerk-Typist
- 71C Executive Administrative Assistant
- 71D Legal Specialist
- 71E Court Reporter
- 71F Postal Clerk
- 71G Patient Administration Specialist
- 71H Personnel Specialist
- 71J Pay Records Specialist
- 71K Personnel Management Specialist
- 71L Administrative Specialist
- 71M Chaplain’s Assistant
- 71N Traffic Management Coordinator
- 71P Flight Operations Coordinator
- 71Q Journalist
- 71R Broadcast Journalist
- 71S Attache Specialist
- 71T Equipment Maintenance Clerk
- 71U Card And Tape Writer
- 7211 Marine Hull Maintenence Officer
- 721A Cryptographic Technician
- 7221 Marine Engine Maintenance Officer
- 7240 Port & Dock Construction Engineer
- 7242 Marine Diver
- 72B Communications Center Specialist
- 72C Central Office Switchboard Operator
- 72D Cryptographic Center Specialist
- 72E Tactical Telecommunications Center Operator
- 72F Data Communications Terminal Specialist
- 72G Automatic Data Telecommunications Center Operator
- 72H Central Office Operations Operator
- 7300 Chemical Engineer
- 7312 Physicist
- 7314 Chemical Staff Officer
- 7315 Chemical Combat Service Support Officer
- 7317 Metallurgist
- 7318 Organic Chemist
- 7319 Chemist
- 7320 Munitions Production Officer
- 7330 Nuclear Weapons Effects Officer
- 7360 Chemical Munitions Development Officer
- 73A Finance Clerk
- 73B Audit Specialist
- 73C Finance Specialist
- 73D Accounting Specialist
- 73Z Finance Senior Sergeant
- 741B “Data Processing Technician, PCM”
- 741C “Data Processing Technician, ADPS”
- 741D “Data Processing Technician, Programmer”
- 741E Telecommunications Automation Software Technician
- 7421 Production Engineer
- 7422 Safety Engineer
- 7423 Aviation Safety Officer
- 7424 Experimental Test Pilot
- 74A Data Processing Equipment Operator
- 74B Card And Tape Writer
- 74C Data Analysis Specialist
- 74D Information Systems Operator
- 74E Computer Systems Operator
- 74F Software Analyst
- 74G ADP Systems Analyst
- 74Z Record Information Systems Chief
- 7500 Mechanical Engineer
- 7501 Aeronautical Engineer
- 7502 Air Conditioning & Refrigeration Engineer
- 75B Personnel Administration Specialist
- 75C Personnel Management Specialist
- 75D Personnel Records Specialist
- 75E Personnel Actions Specialist
- 75Z Personnel Sergeant
- 7601 Electronics Engineer
- 7611 Electrical Engineer
- 761A General Supply Technician
- 762A Support Supply Technician
- 76A Supplyman
- 76B Chemical Supply And Parts Specialist
- 76D Ordnance Supply And Part Specialist
- 76E Quartermaster Supply Specialist
- 76F Quartermaster Parts Supply Specialist
- 76G Signal Supply And Parts Specialist
- 76H Transportation Supply And Parts Specialist
- 76J Medical Supply Specialist
- 76K General Supply Specialist
- 76L Film Library Specialist
- 76M Ammunition Records Clerk
- 76N Procurement Sergeant
- 76P Materiel Control And Accounting Specialist
- 76Q Special Purpose Materiel Supply Specialist
- 76R Weapons Materiel Supply Specialist
- 76S Vehicle Materiel Supply Specialist
- 76T Aircraft Materiel Supply Specialist
- 76U Communications Electronics Materiel Supply Specialist
- 76V Materiel Storage And Handling Specialist
- 76W Petroleum Supply Specialist
- 76X Subsistence Supply Specialist
- 76Y Unit Supply Specialist
- 76Z Senior Supply/Service Sergeant
- 7750 Communications Electronics Systems Engineer
- 7860 Radio Engineer
- 7881 Radio Frequency Engineering Officer
- 7899 Public Communications Officer
- 7900 Civil Engineer
- 7902 Soils Engineer
- 7915 Topographic Engineer
- 7922 Railway Construction Engineer
- 7930 Petroleum Engineer
- 7932 Pipeline Engineer
- 7940 Geologist
- 7960 Sanitary Engineer
- 8000 Civil Affairs Agricultural Officer
- 8101 Legal Officer
- 8102 “Military Judge, Trial & Appellate Level”
- 8103 Judge Advocate or Judge Advocate General
- 8104 Civil Government Officer
- 8105 “Civil Affairs Officer (G5, S5)”
- 811A Photomapping Technician
- 8130 Patent Lawyer
- 81A General Draftsman
- 81B Technical Drafting Specialist
- 81C Cartographer
- 81D Map Compiler
- 81E Illustrator
- 81F Model Maker
- 81Q Terrain Intelligence Analyst
- 8204 Meteorologist
- 821A Survey Technician
- 82A Rodman And Tapeman
- 82B Construction Surveyor
- 82C Field Artillery Surveyor
- 82D Topographic Surveyor
- 82E Topographic Computer
- 8311 Geographer
- 831A Map Reproduction Technician
- 832A No occupational title data available
- 833A Reproduction Technician
- 83A Printer’s Apprentice
- 83B Compositor
- 83C Letter Pressman
- 83D Process Photographer
- 83E Photo And Layout Specialist
- 83F Printing And Bindery Specialist
- 83Z Photolithography Chief
- 8400 Physical Anthropologist
- 8430 Research Psychologist
- 84B Still Photographic Specialist
- 84C Motion Picture Specialist
- 84D Audio Specialist
- 84E Television Cameraman
- 84F Audio/TV Specialist
- 84G Photographic Laboratory Specialist
- 8500 Pictorial Unit Commander
- 8510 Pictorial Officer
- 8511 Motion Picture & TV Director
- 8521 Motion Picture or TV Writer
- 8530 Audio-Visual Instructional Technology Officer
- 8605 Arts-Monuments Officer
- 8700 Operations Research/Systems Analysis (OR/SA) Officer
- 9000 Public Safety Officer
- 9100 Provost Marshal
- 9110 Military Police Officer
- 911A Nuclear Weapons Technician
- 9121 Correctional Officer
- 913A Armament Repair Technician
- 9150 Criminal Investigation Officer
- 915A Unit Maintenance Technician (Light)
- 919A Engineer Equipment Repair
- 91A Medical Corpsman
- 91B Medical NCO
- 91C Practical Nurse
- 91D Operating Room Specialist
- 91E Dental Specialist
- 91F Psychiatric Specialist
- 91G Behavioral Science Specialist
- 91H Social Work Specialist
- 91J Physical Therapy Specialist
- 91K Physical Reconditioning Specialist
- 91L Occupational Therapy Specialist
- 91M Electroencephalograph Specialist
- 91N Cardiac Specialist
- 91P Radiology Specialist
- 91Q Pharmacy Specialist
- 91R Veterinary Food Inspection Specialist
- 91S Preventive Medicine Specialist
- 91T Animal Care Specialist
- 91U “Ear, Nose, And Throat Specialist”
- 91V Respiratory Specialist
- 91W Nuclear Medicine Specialist
- 91Y Eye Specialist
- 91Z Medical Senior Sergeant
- 9224 Explosive Ordnance Disposal Officer
- 92B Medical Laboratory Specialist
- 92C Petroleum Laboratory Specialist
- 92D Chemical Laboratory Specialist
- 9300 “Strategic Intelligence Staff Officer (G2, J2)”
- 9301 “Tactical Intelligence Staff Officer (G2, S2)”
- 9303 Army Attache
- 9305 Psychological Operations Officer
- 9307 Installation Intelligence Officer
- 9309 Aerial Surveillance Officer
- 9310 Inspector General
- 9330 Translation Officer (Designated Language)
- 9332 Interpreter
- 9335 Censorship Officer
- 93B Air Traffic Controller
- 93D Flight Simulator Specialist
- 93E Meteorological Observer
- 93F Field Artillery Meteorological Crewmember
- 93G Microbarograph Specialist
- 93H Air Traffic Control Tower Operator
- 93H Electronic Countermeasures Specialist
- 93J Air Traffic Controller Radar Controller
- 93J Countermeasures Search Specialist
- 93K ATC Approach Control/Enroute Specialist
- 93L Air Traffic Control Chief
- 9414 Fire Protection Officer
- 941A Food Service Technician
- 94A Food Service Helper
- 94B Food Service Specialist
- 94C Meat Cutter
- 94D Baker
- 94E Pastry Baker
- 94F Hospital Food Service Specialist
- 94Z Food Service Supervisor
- 9511 Camouflage Officer
- 951A Criminal Investigator
- 951B Polygraph Examiner
- 951C Questioned Document Examiner
- 951D Firearms & Toolmark Examiner
- 951E Latent Fingerprint Examiner
- 951F Forensic Photographer
- 951G Forensic Chemist
- 95B Military Police
- 95C Corrections Specialist
- 95D CID Special Agent
- 9600 General Electronics Warfare Cryptologic Officer
- 9601 Cryptanalytic Officer
- 9604 Language Officer
- 9610 Electronic Warfare Officer
- 961A Attache Technician
- 9620 Signal Intelligence Officer
- 962A Image Interpretation Technician
- 9630 Signal Security Officer
- 963A Interrogation Technician
- 9640 Electronic Warfare Cryptologic Staff Officer
- 964A Order of Battle Technician
- 9666 Counterintelligence Officer
- 9668 Area Intelligence Officer
- 96B Intelligence Analyst
- 96C Interrogator
- 96D Imagery Analyst
- 971A Counterintelligence Technician
- 972A Area Intelligence Technician
- 97B Counterintelligence Agent
- 97C Area Intelligence Specialist
- 97D Military Intelligence Coordinator
- 97Z Military Intelligence Sergeant Major
- 981A Cryptanalytic Technician
- 982A Traffic Analysis Technician
- 983A Emanations Analysis Technician
- 988A Voice Intercept Technician
- 98A Communication Security Clerk
- 98B EW/Cryptanlytic Cryptanalyst
- 98C Signals Intelligence Analyst
- 98D Communications Security Analyst
- 98G Voice Interceptor
- 98H Voice Countermeasures Operator
- 98J Noncommunications Interceptor/Analyst