| 1. Fire or Explosion |
| 110 Building and Contents or Building Only |
| 111 Building: Contents Only |
| 112 Building: Rubbish Inside |
| 113 Bridge, Trestle, Overhead Elevated Structure |
| 114 Building: Chimney or Flue |
| 115 Building: Incinerator |
| 116 Pier, Quay, Pilings |
| 117 Tunnel |
| 118 Utility Company Equipment (Manhole, Transformer, Vault) |
| 119 Fire Detail |
| 120 Public Mail Box |
| 121 Fence, Pole |
| 122 Other Outside Fire: Material has definable value |
| 130 Road Transport Vehicle: Passenger |
| 131 Road Transport Vehicle: Transport |
| 132 Rail Transport Vehicle |
| 133 Water Transport Vehicle |
| 134 Air Transport Vehicle |
| 135 Heavy Equipment |
| 136 Special Vehicle |
| 140 Forest, Brush, Grass, or Standing Crops |
| 150 Rubbish, Trash, Waste |
| 151 Dump |
| 152 Dumpster |
| 153 Compactor |
| 154 Catch Basin |
| 160 Explosion, No After Fire |
| 170 Outside Spill, Leak with Ensuing Fire |
| 180 Delayed Ignition of Oil Burner |
| 190 Fire, Explosion not listed above |
| 2. Overpressure Rupture (No Combustion) |
| 212 Steam line Rupture |
| 220 Air Compressor Tank Rupture |
| 221 Overpressure Rupture of Oxygen Tank |
| 222 Overpressure Rupture of Other Gas Tank |
| 223 Overpressure Rupture of Gas Pip Line |
| 290 Overpressure Rupture not listed above |
| 3. Rescue, EMS Calls |
| 310 Inhalator |
| 311 Cardiac Arrest, CPR Performed |
| 312 Cardiac Arrest, Non Resuscitation |
| 313 Chest Pain, Cardiac Related |
| 314 OB/GYN Maternity |
| 319 Patient Refusal Against Medical Advice |
| 320 EMS Call (Includes First Aid and Checking for Injuries) |
| 321 Medical Assist |
| 322 Vehicle Accident with Injuries (Includes Aircraft and Marine) |
| 323 EMS Call Where injured parties left scene or were transported prior to fire arrival |
| 324 Vehicle with Pedestrian Accident |
| 325 Multiple Casualty Incident |
| 330 Lock In (Lock Out is 510) |
| 340 Search |
| 341 Water Search |
| 350 Extrication from Building or Vehicle Wreckage |
| 351 Extrication from Stalled Elevator |
| 352 EMS on Scene, Cancel |
| 354 Defective Elevator, No Occupants |
| 355 Trench Rescue |
| 356 Confined Space Rescue |
| 357 High Angle Rescue |
| 360 Drowning or Near Drowning |
| 361 Ice Rescue |
| 362 Water Rescue |
| 363 Swift Water Rescue |
| 364 Surf Rescue |
| 370 Electrocution |
| 390 Other Rescue, EMS Call not listed above |
| 391 Rescue or EMS Standby |
| 4. Hazardous Condition |
| 410 Gasoline Spill or other Flammable Liquid |
| 411 Odor of Gas, Gas Leak (Domestic or LPG) |
| 412 Oil Spill, or other combustible liquid |
| 420 Explosive, Bomb Removal (Bomb Scare is 720) |
| 431 Excessive Heat |
| 432 Heat from short circuit, defective or worn insulation |
| 434 Breakdown of light ballast |
| 440 Power line down |
| 441 Cable, Telephone lines down |
| 451 Arcing, Shorted electrical equipment |
| 460 Aircraft Stand by |
| 470 Chemical Spill |
| 471 Radiation Leak, radioactive material |
| 472 Refrigeration leak |
| 473 Chemical Hazard, no spill or leak |
| 474 Asbestos Incident, no fire |
| 475 Unstable, reactive, explosive material |
| 480 Attempt to Burn |
| 481 Threat to Burn |
| 490 Other hazardous condition no listed above |
| 492 Gas appliance defective, malfunction, or misuse |
| 5. Service Call |
| 510 Lock Out (Lock in is 330) |
| 520 Water Evacuation |
| 530 Smoke or odor removal |
| 540 Animal rescue |
| 550 Assisted Police or other city department |
| 551 Police matter |
| 560 Unauthorized burning |
| 570 Mutual aid - Line Box (No Duty or False Alarm) |
| 571 Mutual aid - Coverage only |
| 572 Mutual aid - Response to fire |
| 573 Mutual aid - Response and coverage |
| 574 Covered other Boston company |
| 575 Covered other district |
| 590 Service Call not listed above |
| 591 Water or Steam Leak (includes open hydrant |
| 592 Public Service |
| 594 Defective elevator - No Injuries (Use 350 if persons released) |
| 6. Good Intent Call |
| 610 Smoke Scare, Odor of smoke |
| 620 Wrong Location |
| 630 Controlled Burning |
| 631 Barbecue, Tar Kettle |
| 640 Incident in other location (Vicinity Alarm) |
| 650 Steam, Vapor, Fog, or Dust for Smoke |
| 670 External Visual Investigation, No apparent evidence of fire |
| 690 Other Good intent call, not listed above |
| 7. False Alarm, False Call |
| 710 False Alarm, Box |
| 720 False Alarm, Master Prefix Box |
| 712 False Alarm, Still (Telephone) |
| 713 False Alarm, Central System |
| 714 False Alarm, Local Alarm System |
| 720 Bomb Scare |
| 730 Alarm System Malfunction, Sprinkler |
| 731 Alarm System Malfunction, Smoke Detector |
| 732 Alarm System Malfunction, Heat Detector |
| 734 Heat Detector Device Operated, No Fire |
| 735 Local Alarm System Malfunction, Sprinkler |
| 736 Local Alarm System Malfunction, Smoke Detector |
| 737 Local Alarm System Malfunction, Heat Detector |
| 740 Unintentional Alarms, Not a Malfunction (Knockdowns only) |
| 8. Natural Disasters |
| 810 Earthquake |
| 820 Flood |
| 830 Wind Storm (includes Hurricane, Tornado, etc...) |
| 840 Lightning Strike - No Fire |
| 890 Natural Disaster, not listed above |
| 9. Other situation |
| 910 Citizen Complaint |
| 990 Other condition not listed above |
| 991 Assisted other district at fire |