A – AVIATION
AC – Aviation, Air Traffic Control
AF – Aviation, Flight Training
AG – Aviation, FAA Ground School
AN – Aviation, Basic Airman
AS – Aviation, Survival (SERE)
AV – Aviation, Advanced Airman
AX – Aviation, Other

C – CONSTRUCTION
CB – Seabee, Basic
CD – Seabee, Advanced
CF – Seabee, Field Operations
CX – Seabee, Other

D – DIVE
DA – Dive, SCUBA Certification, Advanced
DB – Dive, SCUBA Certification, Basic
DO – Dive, Explosive Ordnance
DU – Dive, Underwater Research
DX – Dive, Other

F – FOOD SERVICES
FC – Food Service, Culinary Arts
FS – Food Service, Cook/Steward Training
FX – Food Service, Other

G – COAST GUARD
GC – Coast Guard, Shipboard/Cutter Operations
GL – Coast Guard, Locally Arranged
GM  –Coast Guard, Maritime Interdiction
GS – Coast Guard, Shore/Boat Station
GX – Coast Guard, Other

L – NLCC TRAINING (10-13 Year Olds)
LB – NLCC Orientation, Basic
LC – NLCC Orientation, Advanced
LD – NSCC Drug Education
LE – NLCC Exploration
LF – NLCC Field Operations
LG – NLCC Coast Guard Training
LH – NLCC Medical Training
LJ  – NLCC Photojournalism
LK – NLCC STEM/SeaPerch
LM – NLCC Master-At-Arms Training
LO – NLCC Aviation Training
LP – NLCC Leadership Academy
LQ – NLCC Fitness and Lifestyles Training
LR – NLCC Regional Event (Flagship, ORI, Etc.)
LS – NLCC Sailing, Basic
LT – NLCC Sailing, Advanced
LU – NLCC Seamanship, Basic
LV – NLCC Seamanship, Advanced
LW – NLCC Marksmanship
LX – NLCC Training, Other
LZ – NLCC SEAL Orientation/Challenge

M – MEDICAL
MB – Medical, Basic
MC – Medical, Advanced
MD – Medical, Drug Education/DEFY/DARE
MF – Medical, Field Operations
MG – Medical, Fitness/Fitness Lifestyle Train
MH – Medical, Surgical Technician
MX – Medical, Other

N – LEADERSHIP
N1 – Leadership, Officer Professional Development (101)
N2 – Leadership, Officer Professional Development (201)
N3 – Leadership, Officer Professional Development (301)
ND – Leadership, Junior Professional Development (JPD)
NP – Leadership, Petty Officer Academy, (POLA)
NX – Leadership, Other

O – SEAMANSHIP
OA  –Seamanship, Sailing, Advanced
OB – Seamanship, Sailing, Basic
OC – Seamanship, Basic Marlinspike
OD – Seamanship, Advanced Marlinspike/Seaman
OE – Seamanship, Small Boat Ops/Deck Seaman
OL – Seamanship, Amphibious Operations
OM – Seamanship, Mine Warfare
ON – Seamanship, Navy, Shipboard
OP  –Seamanship, Port Operations
OS – Seamanship, Submarine Seminar
OX – Seamanship, Other

P – PUBLIC SAFETY
PF – Public Safety, Fire Fighting
PH – Public Safety, Hazardous Materials
PJ – Public Safety, JAG/Legal
PL – Public Safety, Lifeguard
PM – Public Safety, Marksmanship
PO – Public Safety, Police/Master-at-Arms
PQ – Public Safety, Search and Rescue
PS – Public Safety, Homeland Security
PX – Public Safety, Other

R – NAVY SHORE
RA – Navy Shore, Maritime Industrial Arts
RB – Navy Shore, Music/Band, Basic
RC – Navy Shore, Music/Band, Advanced
RD – Navy Shore, Field Operations
RE – Navy Shore, Navy Engineering School
RG – Navy Shore, Gunner's Mate School
RH – Navy Shore, Ceremonial/Honor Guard
RJ – Navy Shore, Photojournalism
RK – Navy Shore, STEM/SeaPerch
RL – Navy Shore, History and Heritage
RM – Navy Shore, Navy Electronics School
RN – Navy Shore, Naval Intelligence
RP – Navy Shore, Religious Program Specialist
RQ – Navy Shore, Marine Mammal Research
RR – Navy Shore, Recruiting Office Duty
RS – Navy Shore, Operational Specialist
RT – Navy Shore, NSCC Recruit Training
RV – Navy Shore, Vehicle Maintenance
RX  –Navy Shore, Other
RZ – Navy Shore, SEAL Orientation/Challenge

 

S – SPECIAL OPERATIONS
SB – Special Operations, SWCC/Special Boats
SJ – Special Operations, JSOC
SL – Special Operations, SEAL
SX – Special Operations, Other

 

X – INTERNATIONAL EXCHANGE
XE – International Exchange, IEP
XE – International Exchange, Canada
XL – International Exchange, Locally Arranged
XU – International Exchange, U.S. Hosted
XX – International Exchange, Other