A/O: Area Of
EB: Eastbound
NB: Northbound
SB: Southbound
WB: Westbound
EO: East Of
NO: North Of
SO: South Of
WO: West Of
JEO: Just East Of
JNO: Just North Of
JSO: Just South Of
JWO: Just West Of
MM: Mile Marker
MP: Mile Post
ATT: At This Time
Auto: Automobile
ETA: Estimated Time of Arrival
C/G: Chopper Go
COR, CORE: Cardiac Arrest
DOA: Dead On Arrival
E/R: En Route
ETOH: Alcohol
FFL: Flight For Life
FF: Firefighter
F/I: Fully Involved
Green: Minor injuries
Yellow: Serious injuries
Red: Critical injuries
Black: Deceased
HO: Head-On
JAWS: Extrication
K/D: Knocked Down
LG: Lifeguard (medical helicopter)
LODD: Line Of Duty Death
LZ: Landing Zone
M/A: Mutual Aid
MVA: Motor Vehicle Accident
MVC: Motor Vehicle Collision
MC: Motorcycle
MCI: Mass Casualty Incident
MFD: Multi-Family Dwelling
NFI: No Further Information
O/F: Operating Frequency
OIS: Officer-Involved Shooting
O/S: On Scene
Ped: Pedestrian
PT: Patient
R/O: Rollover
SEAT: Single Engine Air Tanker
SB: Subject
SBI: Serious Bodily Injury
S/F: Structure Fire
SFD: Single-Family Dwelling
T/A: Traffic Accident
TX: Transport
U/C: Under Control
U/D: Update
L/U/D: Last Update
UTL: Unable To Locate
W/: With
YOF: Year-Old Female
YOM: Year-Old Male