AGB |
Auxiliary, Icebreaker, Heavy |
AGC |
Auxiliary, Amphibious Command Ship |
AGL |
Auxiliary, Lighthouse Service Tender |
AO |
Auxiliary, Oiler |
AOG |
Auxiliary, Oiler, Gasoline |
ARS |
Auxiliary, Salvage Ship |
ASR |
Auxiliary, Submarine Rescue |
AT |
Auxiliary, Ocean Tug |
ATA |
Auxiliary, Ocean Tug |
ATF |
Auxiliary, Fleet Tug |
ATS |
Auxiliary, Salvage and Repair |
AVP |
Seaplane Tender, Small |
BUSL |
Buoy, Utility, Stern Load |
CC1C |
Cruising Cutter First Class |
CC2C |
Cruising Cutter Second Class |
CE |
Sub Chaser |
DD |
Destroyer |
DE |
Destroyer Escort |
FS |
Freighter, Small |
HEC |
High Endurance Cutter |
IX |
Miscelaneous Unclassified |
LB |
Buoy Tender, Large |
LBB |
Icebreaking Tender |
| LHT | Light House Tender |
LI |
Buoy Tender, Inland |
LIC |
Buoy Tender, Inland Construction |
LM |
Buoy Tender, Medium |
LR |
Buoy Tender, River |
LS |
Light Ship |
LT |
Large Tug |
MEC |
Medium Endurance Cutter |
MLB |
Motor Life Boat |
MSB |
Motor Surf Boat |
PB |
Patrol Boat |
PC |
Coastal Patrol Craft |
PCE |
Patrol Craft Escort |
PF |
Patrol Frigate |
PG |
Patrol Gunboat |
PSB |
Port Security Boat |
| RC | Revenue Cutter |
SC |
Sub Chaser |
SES |
Surface Effect Ship |
ST |
Small Tug |
TGB |
Icebreaking Tug, Large |
UTB |
Utility Boat |
W |
Coast Guard - Used in front of other classifications |
YT |
Yard Tug |
YTL |
Harbor Tug, Large |
YTM |
Harbor Tug, Medium |
YTS |
Harbor Tug, Small |