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New Hampshire Statewide Codes


10-1 - - - - - - Call / Telephone Unit
10-2 - - - - - - Cancel Response
10-3 - - - - - - Call NHSWNA Dispatcher
10-4 - - - - - - Msg Received / Understood
10-5 - - - - - - Please Repeat Message
10-6 - - - - - - Stand Bye
10-7 - - - - - - Verify Information
10-8 - - - - - - On the Air / In Service
10-9 - - - - - - Off Air / Out of Service
10-10 - - - - - Location
10-11 - - - - - Radio Test
10-12 - - - - - Preliminary Report
10-13 - - - - - Need Help
10-14 - - - - - Update Incident
10-17 - - - - - Period of Unrest / Civil Disturbance
10-20 - - - - - Under Control
10-21 - - - - - Large brush or woods fire
10-25 - - - - - Motor Vehicle Accident
10-30 - - - - - Smoke / Fire Showing
10-45 - - - - - Injury
Code 1 = Fatal (Code 10 / M.E. requested)
Code 2 = Serious (Status 1 / Status 2)
Code 3 = Minor (Status 3 / Status 4)
10-51 - - - - - Use Caution - Unusual Road Conditions - Bad Driving - Weather Alert
10-75 - - - - - Working Fire
10-80 - - - - - Hazardous Material Incident
10-95 - - - - - Non standard radio procedure.




A/C/W = All Companies Working (Not a Working Fire if on initial dispatch))
Fire is present, but does not require response beyond the initial apparatus dispatch
Example A room fire with contents on fire but not extending to floor, ceiling, or walls.

If you hear the term All Companies Working after a Working Fire or Multiple Alarm has been announced, it means that all units/personnel dispatched are engaged in firefighting/incident activities
Sometimes referred to as All Hands or All Hands Working

W/F = Working Fire - Fire is consuming the structure

Mut/Aid or M/A = Mutual Aid Assistance from neighboring departments are responding either to provide station coverage or respond to the scene/staging area

O/M/D = Occupied Multi-occupancy Dwelling (Apartment)

1.5 or 11/2 Story Wood Frame = Two and a half Story Wood Frame house/building
As opposed to a balloon style construction found in very old homes or
A brick or masonry construction

Doubtful Will Hold or Doubtful (DWH) = It is Doubtful that the fire will
be contained with present assignment of apparatus and manpower at scene

Probable Will Hold or Probable (PWH) = It is Probable that the fire will
be contained with present assignment of apparatus and manpower at scene



ACW All Companies Working.
Adj Adjacent To
Amb Ambulance
Apt Apartment
Att Attached
B/O By Orders Of
Bldg Building
Civ Civilian
Comm Commercial
Dist District
Div Division
Dwh Doubtful Will Hold With Current Assignment
EDP Emotionally Disturbed Person
EMS Emergency Medical Services
Eng Engine Company
Enrte Enroute To
Evac Evacuation
Ext Extension
FAST First Aid Stabilization Team
F/I Fully Involved
FF Firefighter
FG Fireground
Flr Floor
G/A General Alarm Fire
HazMat Hazardous Materials Incident
Hse House
Hvy Heavy
Inj Injury
Inv Involved
K/D Fire Knocked Down
L/Z Landing Zone (Helicopter)
Lad Ladder
LDH Large Diameter Hose
Lk Leak
Lrg Large
MD Multiple Dwelling - Apartment Bldg
Nr Near
Occ Occupied
OIC Officer In Charge
OMD Occupied Multiple Dwelling - Apt Bldg
Opp Opposite
PWH Probable Will Hold With Present Assignment
Req Requested / Required.
Resp Response
Rest Restaurant
S/C Special Call
Sty Story
Trk Truck
TT Tractor Trailer
U/D Update
Unk Unknown
Vac Vacant
W/F Working Fire
WdFrm Woodframe
Xc Across From

Injury status equivalents (Buff 10-45 Codes vs NH Status)
Code Gray / 10-26 / Code 10 / Signal 21 / 4-500 == 10-45-c1 (FATAL)

(Medical) Status 1 == 10-45-c2+ (Immediate threat to life or limb)

(Medical) Status 2 == 10-45-c2 (Possible threat to life or limb)

(Medical) Status 3 == 10-45-c3 (No threat to life or limb)

(Medical) Status 4 == not reported (Patient sign off)



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