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| A/A | Automatic Aid |
| A&D | Armed & Dangerous |
| A/H | All Hands Working |
| A/R | Armed Robbery |
| Acc | Accident |
| ACW | All Companies Working |
| Addr | Address |
| ADW | Assault w/ Deadly Weapon |
| AHW | All Hands Working |
| AKA | Also Known As |
| Alm | Alarm |
| ALS | Advanced Life Support |
| AMA | Patient Refusal Against Medical Advice |
| Apt | Apartment |
| ARC | American Red Cross |
| ARFF | Air Rescue Fire Fighting |
| ASAP | As Soon As Possible |
| Asst | Assistance |
| ATF | Buruea of Alcohol, Tobacco & Firearms |
| ATL | At This Location |
| ATL | Attempt To Locate |
| ATT | At This Time |
| Auth | Authorities |
| Ave | Avenue |
| B&E | Breaking & Entering |
| BAC | Blood Alcohol Concentration |
| BC | Battalion Chief |
| BDL | Break Down Lane |
| Bldg | Building |
| BLEVE | Boiling Liquid Expanding Vapor Explosion |
| Blk | Block or Black |
| BLS | Basic Life Support |
| Blvd | Boulevard |
| BOLO | Be On The Lookout |
| Brk | Brick Stucture |
| Burg | Burglary |
| BYO | By Orders Of |
| CAFS | Compressed Air Form System |
| Capt | Captain |
| CBS | Concrete Block Structure |
| CCW | Carrying Concealed Weapon |
| CD | Center Divider |
| CISD | Critical Incident Stress Debriefing |
| Cit | Citizen |
| Civ | Civilian |
| C/J | Carjacking |
| CMP | Canadian Mounted Police |
| Co | Company |
| CO | Carbon Monoxide |
| CO2 | Carbon DiOxide |
| Command or CMD | Command/Incident Commander |
| Comm | Commercial Structure |
| Corr | Corrected |
| CP | Command Post |
| CSF | Commercial Structure Fire |
| CSU | Crime Scene Unit |
| Ctr | Center |
| Cyn | Canyon |
| DC | Deputy Chief |
| Def | Defensive |
| DEP | Dept of Environmental Protection |
| Dept | Department |
| DES | Dept of Environmental Services |
| Det | Detective(s) |
| DHS | Dept of Homeland Security |
| Dist | District |
| Disp | Dispatched |
| Div | Division |
| DL | Drivers License |
| Dlyd | Delayed |
| DOA | Dead On Arrival/Deceased |
| DOF | Direction of Flight |
| DOS | Dead On Scene/Deceased |
| DOT | Dept of Transportation |
| Dplx | Duplex (2 Family Dwelling) |
| DTF | Drug Task Force |
| DUI | Driving Under the Influence |
| DV | Domestic Violence |
| Dwell | Dwelling |
| DWI | Driving While Intoxicated |
| DWMH | Double-Wide Mobile Home |
| E/B or EB | East-Bound |
| EDP | Emotionally Disturbed Person |
| Emer | Emergency |
| EMS | Emergency Medical Services |
| Enforce | Enforcement |
| Eng | Engine Company |
| Enrt | Enroute |
| Entrap | Entrapment |
| EOC | Emergency Operations Center |
| EOD | Explosives Ordinance Division (Bomb Team) |
| EOR | End of Row |
| EOW | End of Watch |
| ER | Emergency Room |
| ESU | Emergency Services Unit |
| ETA | Estimated Time of Arrival |
| Evac | Evacuation |
| Exp | Exposures |
| Ext | Extension |
| Extd | Extended |
| F/I | Fully Involved |
| FAST | Firefighter Assist & Search Team |
| FB | Fireboat |
| FD | Fire Department |
| FF | Firefighter |
| FFS | Forest Fire Service |
| FIU | Fire Investigation Unit |
| Ft | Foot or Feet |
| FTY | Failure To Yeild |
| Fwy | Freeway |
| Gen | General |
| GCS | Glascow Coma Scale |
| GOA | Gone On Arrival |
| GSW | Gun Shot Wound |
| Heli or Helo | Helicopter |
| Hgt | Height |
| HM or H/M | Hazmat |
| HMTF | Hazmat Task Force |
| Hosp | Hospital |
| Hr | Hour |
| HVAC | Heat, Ventilation & Air Conditioning System |
| Hvy | Heavy |
| Hwy | Highway |
| IAB | Internal Affairs |
| IAO | In the Area Of |
| IC | Incident Command(er) |
| IDLH | Immediately Dangerous to Life & Health (Hazmat) |
| IED | Improvised Explosive Device |
| IFE | In Flight Emergency |
| IFO | In Front Of |
| I/L | Inner Loop |
| Ind or Indl | Industrial |
| Info | Information |
| Insp | Inspector |
| Intox | Intoxicated |
| Inj | Injury |
| Inv or Invd | Involved |
| Invest | Investigating |
| IRO | In the Rear Of |
| ISD | Inspectional Services Division |
| IVO | In the Vicinity Of |
| Jaws | Jaws Of Life |
| JEO | Just East Of |
| JNO | Just North Of |
| Jr. | Junior |
| JSO | Just South Of |
| Juv | Juvenile |
| JWO | Just West Of |
| KD or K/D | Knockdown |
| KPH | Kilometers Per Hour |
| K9 or K-9 | Canine Unit |
| Lad | Ladder |
| LDH | Large Diameter Hose |
| LHS | Left Hand Shoulder |
| Lieut | Lieutenant |
| Loc | Location |
| LOC | Loss Of Consciousness |
| LODD | Line Of Duty Death |
| LOX | Liquid Oxygen |
| LSO | Line Stretched & Operating |
| LSW or L/S/W | Last Seen Wearing |
| LS or L/S | Last Seen |
| Lt | Lieutenant or Light |
| Ltd | Limited |
| LZ | Landing Zone |
| MA or M/A | Mutual Aid |
| Mag | Magnitude |
| Matl | Material |
| MC | Motorcycle |
| MCI | Mass Casualty Incident |
| ME | Medical Examiner |
| MFD | Multi-Family Dwelling |
| MH | Mobile Home |
| Mi | Mile(s) |
| Min | Minute(s) |
| MOG | Middle Of Group |
| MOI | Mechanism Of Injury |
| MOR | Middle Of Row |
| MOS | Member Of Services |
| MPH | Miles Per Hour |
| Mt | Mount |
| Mtn | Mountain |
| MU | Marine Unit |
| MVA or MVC | Motor Vehicle Accident / Collision |
| Narc | Narcotics |
| NB or N/B | North-Bound |
| Neg | Negative |
| O/L | Outer Loop |
| O/S | On Scene |
| O/T | Over-Turned |
| Occ | Occupied or Occupant |
| OIC | Officer In Charge |
| OIS | Officer Involved Shooting |
| OMD | Occupied Multiple Dwelling |
| Ops | Operations |
| Orig | Origin |
| Org | Organized |
| OTS | Over The Side |
| Part | Partial |
| PD | Police Department |
| Perp | Perpetrator |
| P/I | Personal Injury |
| PIA | Personal Injury Accident |
| PIO | Public Information Officer |
| PO | Police Officer |
| POI | Person Of Interest |
| Poss | Possible |
| PPM | Parts Per Million (Hazmat Term) |
| PPE | Personal Protection Equipment |
| PPV | Positive Pressure Ventilation |
| Prev | Previous or Prevention |
| Prim | Primary |
| Prod | Product |
| Prop | Property |
| Pt | Patient or Patients |
| P/U | Pick-up Truck |
| PWH | Probably Will Hold |
| RA | Rescue Ambulance |
| Resp | Responding |
| Req | Request or Requesting |
| rev | Revised |
| RHS | Right Hand Shoulder |
| RIT | Rapid Intervention Team |
| R/O | Roll-Over |
| ROS | Rate Of Speed |
| RP | Reporting Party/Person |
| SB or S/B | South-Bound |
| S/C | Special Call |
| S/T | Strike Team |
| SAR | Search & Rescue |
| Schl | School |
| Smk | Smoke |
| SO | Sheriffs Office/Department |
| SOB | Souls On Board |
| SOPS | Special Operations |
| SP | State Police/Patrol |
| Spklr | Sprinkler |
| Sq or Sqd | Squad |
| Sr | Senior |
| SRO | Single Room Occupancy |
| SRT | Strategic Response Team or Special Response Team |
| SSC | Strip Shopping Center |
| Sta or Stn | Station |
| Subst | Substance |
| Subj | Subject |
| SUs | Special Units |
| Susp | Suspect |
| Svcs | Services or Emergency Services |
| SWAT | Special Weapons & Tactics |
| T/F or TF | Task Force |
| TA | Traffic Accident |
| TBA | To Be Announced |
| TBD | To Be Determined |
| TC | Traffic Collision |
| Tech | Technical |
| TIC | Thermal Imagine Camera |
| TK or Trk | Truck Company |
| TRO | Temporary Restraining Order |
| TT | Tractor Trailer |
| Txmtd | Transmitted |
| U/C | Under Control |
| UC | Undercover |
| UAR | Un-Armed Robbery |
| Univ | University |
| Unk | Unknown |
| U/D | Update |
| USAF | U.S. Air Force |
| USAR | Urban Search & Rescue |
| USBP | U.S. Border Patrol |
| USCG | U.S. Coast Guard |
| USMC | U.S. Marine Corps |
| USN | U.S. Navy |
| UTL | Unable To Locate |
| Vac | Vacant |
| Veg | Vegetation/Brush/Grass Fire |
| Veh | Vehicle |
| Vic or Vict | Victim |
| Vol | Volunteer |
| vs | Versus |
| VSA | Vital Signs Absent |
| WB or W/B | West-Bound |
| W/I | Well Involved |
| WC | Watch Commander |
| WDFR | Wood Frame Structure |
| W/F | Working Fire |
| WHSE | Warehouse |
| Wit | Witness |
| WMD | Weapons of Mass Destruction |
| WSF | Washington State Ferry |
| WSP | Washington State Patrol |
| YO or Y/O | Year Old |
| # | Symbol to indicate Pounds |