24 | 24-hour Endurance Snowmobile |
A1 | Aviation Advertising |
A2 | Aerial Application |
A3 | Aviation Aerobatics |
A4 | Air Ambulance |
A5 | Air Taxi |
A7 | Auto Stunt Driving |
A8 | Abalone Diving |
A9 | Aerobatic Skydiving |
AA | Auto Drag Racing |
AB | Aviation Ferrying |
AC | Aviation Firefighting |
AD | Auto Hill Climbing |
AE | Aviation Inspection |
AF | Aviation Instructional |
AH | Aviation Prospecting |
AI | Auto Road Rally |
B1 | Business Aviation |
B2 | Base Jumping |
B3 | Boxing |
B4 | Bungee Jumping |
B5 | Banner Towing |
B6 | Bush Flying |
C1 | Championship Auto Racing |
C2 | Certificated Route Air Carrier |
C3 | Chartered Air Carrier |
C4 | Commercial Aviation |
C5 | Construction Helicopter |
C6 | Corporate Aviation |
C7 | Crew Member Aviation |
C8 | Cross-country Aviation |
C9 | Cross-country Motorcycle Racing |
CA | Cave Diving |
CB | Cross-country Snowmobile Racing |
CC | Cartography |
CD | Cliff Soaring |
D1 | Demolition Derby |
D2 | Demonstration Aviation |
DR | Driving |
E1 | Endurance Racing Inboard |
E2 | Experimental Skydiving |
F1 | Flying Used to send total hours flown in lifetime |
F2 | Figure 8 Demolition |
F3 | Formula or Grand Prix Auto Racing |
F4 | Forestry Aviation |
F5 | Fire Fighting |
G1 | Glider or Sailplane |
G2 | Grand Prix Motorcycle Racing |
G3 | Ground Skimming |
H1 | Hot-air Ballooning |
H2 | Hang Gliding |
H3 | Hydroplane Racing Unlimited |
H4 | Hydroplane Racing Inboard |
I1 | International Racing (Auto) |
I2 | Intermediate Junior Snowmobile Racing |
I3 | Ice Diving |
I4 | Iceboat Racing |
I5 | Inboard Racing |
I6 | Ice Climbing |
J1 | Jet Car Racing |
J2 | Judo |
K1 | Kart Racing |
K2 | Karate |
M1 | Midget Racing |
M2 | Military Flying |
M3 | Modified Outboard Racing |
M4 | Motorboat Racing |
M5 | Modified Stock Motorcycle Racing |
M6 | Motocross Racing |
M7 | Mountain Climbing |
M8 | Military Skydiving |
M9 | Modified Stock Snowmobile Racing |
MA | Modified Snowmobile Racing |
MB | Motorcycle Acrobatics |
MC | Motorcycle Dirt Track Racing |
MD | Motorcycle Drag Racing |
ME | Motorcycle Enduro Racing |
MF | Motorcycle Hill Climbing |
MG | Motorcycle Ice Racing |
MH | Motorcycle Observed Trials |
MI | Motorcycle Road Racing |
MJ | Motorcycle Road Riding |
MK | Motorcycle Speed Record Trials |
ML | Motorcycle Speedway |
N1 | Non-scheduled Flying |
O1 | Off Road Auto Racing |
O2 | Offshore Racing |
O3 | Outboard Performance Craft Racing |
O4 | Oval Sprint Snowmobile Racing |
O5 | Other |
O6 | Open Modified Snowmobile Racing |
P1 | Passenger Aviation |
P2 | Personal Aviation |
P3 | Photographic Aviation |
P4 | Pilot Aviation |
P5 | Pleasure Aviation |
P6 | Precision Flying |
P7 | Private Flying |
P8 | Parachuting |
P9 | Professional Outboard Racing |
PA | Parakiting |
PB | Parasailing |
PC | Paraskiing |
R1 | Rock Climbing |
R2 | Rodeo |
R3 | Ridge Soaring |
S1 | Sports Car Racing |
S2 | Sprint Car Racing |
S3 | Stock Car Racing |
S4 | Snowmobile Enduro Racing |
S5 | Scheduled Flying |
S6 | Sight Seeing Aviation |
S7 | Student Flying |
S8 | Stock Outboard Racing |
S9 | Snowmobile Drag Racing |
SA | Stock Snowmobile Racing |
SB | Spear Fishing |
SC | Scuba Diving |
SD | Skydiving |
SE | Skydiving Accuracy |
SF | Skydiving Free-fall |
SG | Stunt Flying |
T1 | Testing Aviation |
T2 | Traffic Watch Aviation |
U1 | Underwater Diving |
U2 | Underwater Hard-hat Diving |
U3 | Underwater Scuba Diving |
U4 | Underwater Skin Diving |
W1 | Water Skiing |
W2 | Wrestling |
W3 | Wreck or Salvage Diving |
W4 | World Snowmobile Speed Record |