FDNY Radio Signals
10-1 Call quarters or other unit
10-2 Return to quarters
10-3 Call the dispatcher by phone
10-4 Acknowledgement
10-5 Repeat message
10-6 Stand By
10-7 Verify Address – Location
10-8 In Service by Radio
C1 – BC/DC leaving quarters other than their own
C2 – Unit outside of response area
10-9 Off the air
10-10 Unit Location
10-11 Request test count
10-12 First arriving unit to give preliminary
10-13 Fire Marshal requests immediate police help
10-18 Return all units except 1 engine & 1 ladder
10-19 Return all units except 1 engine OR 1 ladder
10-20 Proceed at reduced speed
10-21 Brush fire
10-22 Outside rubbish fire
10-23 Abandoned derelict vehicle fire (ADV)
10-24 Auto fire
10-25 Manhole or transformer
No code – Situation other than 1, 2, 3 or 4
C1 – Fire extended to building
C2 – One or more covers blown, under pressure
C3 – Smoke seeping from manhole
C4 – Transformer fire
10-26 Food on the stove
10-27 Compactor or incinerator fire
10-28 Subway/RR System fire or emergency
C1 – Structural fire
C2 – Non- structural
C3 – Emergency (non medical)
10-29 Elevator Emergency
C1 – Occupied
C2 – Unoccupied
10-31 Assistance other than medical
10-32 Defective oil burner
10-33 Odor condition
C1 – From nearby fire or BBQ
C2 – Any other odor
10-34 Sprinkler system emergency
C1 – Defective devise or system
C2 – Unwarranted alarm
C3 – Heat activated
10-35 Unwarranted or unnecessary alarm
No code – unwarranted alarm
C1 – Unnecessary – testing or servicing
C2 – Unnecessary – construction
C3 – Unnecessary – ordinary
C4 – Unnecessary – other
10-36 Vehicle accident or emergency
C1 – Washdown
C2 – No injuries or washdown
C3 – Injuries
C4 – Extrication required
No Code – Vehicle emergency other than above
10-37 Medical assignment / Assist civilian
C1 – Victim deceased
C2 – Serious Life Threatening
C3 – Breathing / ill or sick
C4 – No patient contact
10-38 Carbon Monoxide
C1 – Detector activation / defective alarm
C2 – Detector activation 1 to 9 PPM
C3 – Detector activation > 9 PPM
C4 – No detector activation
10-39 FD standing by (Interagency incident)
10-40 Utility Emergency
No Code – Utility emergency
C1 – Gas emergency
C2 – Electric emergency
C3 – Water condition
C4 – Steam leak
10-41 Suspicious fire
C1 – Occupied structure/vehicle
C2 – Unoccupied structure
C3 – Unoccupied vehicle
C4 – Vacant structure / non dwelling
10-42 Downed tree incident or emergency
10-43 Non fire related rescue
10-44 Request for EMS
10-45 Fire Related DOA/Injury
C1 – Deceased
C2 – Life threatening
C3 – Non-life threatening
C4 – Non-serious / ambulatory
10-46 Maritime fire or emergency
C1 – Fire in maritime environment
C2 – Emergency in maritime environment
10-47 Request for police
10-48 Request for police for harassment
10-51 Cancel outdoor activities
10-60 Major Emergency response
C1 – Enhanced 2nd alarm
10-66 Missing, lost, trapped or seriously injured
member and additional resources required
10-70 Water supply required
10-75 Notification of fire or emergency
10-76 Hi Rise fire commercial
10-77 Hi Rise Fire residential
10-80 Haz-Mat Incident
No Code – Handled by units on scene
C1 – Require additional units
10-84 First unit to arrive
10-85 Fire Marshal Requires Emergency Police
Assistance (specify)
10-86 Alcohol resistant foam operation
10-87 Hi-Ex Foam Operation
10-91 Medical emergency EMS – FD not required
10-92 Malicious false alarm
10-99 Units will be operating > 30 minutes
C=Code