Police 10 Codes

Police and other agencies use 10 codes to verbally communicate efficiently over the radio. The word ten (10) indicates the next number, or numbers, is code. There are 4 code versions widely used throughout the United States and listed below. The APCO (Association of Police Communications Officers) version is the most common.

10 CODE VERSIONS

Code	APCO	APCO-0	Norfolk, VA	Walnut Creek, CA
10-1	Unable to Copy - Change Location	Signal Weak	Police Officer Needs Help	Poor Radio Reception
10-2	Signal Good	Signal Good	Assist Officer	Good Radio Reception
10-3	Stop Transmitting	Stop Transmitting	Clear the Air-Emergency	Stop Transmission
10-4	Acknowledgment (OK)	Affirmative (OK)	O.K., Acknowledgment	Message Received
10-5	Relay	Relay To / From	See a Complainant	Relay Message
10-6	Busy - Unless Urgent	Busy	Investigation Police or Fire	Change Radio Channel
10-7	Out of Service	Out of Service	(a) Out of Service - Off the Air (b) Out of Service - Subject to Call	Out of Service
10-8	In Service	In Service	In Service	In Service
10-9	Repeat	Say Again	Arrived at Scene	Repeat Message
Code	APCO	APCO-0	Norfolk, VA	Walnut Creek, CA
10-10	Fight in Progress	Negative	Traffic Detail	Off Duty
10-11	Dog Case	___ on Duty (Employee Number)	Broken Glass	Visitors Can Hear Radio
10-12	Stand By (Stop)	Stand By (Stop)	Vandalism	Advise Weather / Road Conditions
10-13	Weather-Road Report	Weather Conditions	(a) Leaking Water Main or Sewer (b) Hole in the Street / Sidewalk
10-14	Prowler Report	Message / Information	Convoy or Escort
10-15	Civil Disturbance	Message Delivered	Have Prisoner in Custody	Have Prisoner in Custody
10-16	Domestic Problem	Reply to Message	Pick Up Prisoner	Pick Up
10-17	Meet Complainant	Enroute	Administrative Assistance	Getting Fuel
10-18	Quickly	Urgent	Detail
10-19	Return to ___	(In) Contact	Return to Station	Return or Go to ___
Code	APCO	APCO-0	Norfolk, VA	Walnut Creek, CA
10-20	Location	Location	What is Your Location	Location
10-21	Call ___ by Phone	Call ___ by Phone	Call ___ by Telephone	Telephone
10-22	Disregard	Disregard	Investigate a Break In	Cancel or Disregard
10-23	Arrived at Scene	Arrived at Scene	Breaking In (In Progress)	Stand By
10-24	Assignment Completed	Assignment Completed	Someone in the Building
10-25	Report in Person (Meet)	Report to (Meet)	Prowler	Do You Have Contact With ___ ?
10-26	Detaining Subject, Expedite	Estimated Arrival Time (ETA)	Larceny	Clear of Warrants
10-27	(Drivers) License Information	License / Permit Information	Rape Report	Subject Wanted
10-28	Vehicle Registration Information	Vehicle Information	Check Full Registration, License, Motor, Name, Stolen	Registration Check
10-29	Check for Wanted	Records Check	Person with a Gun	Check for Warrants
Code	APCO	APCO-0	Norfolk, VA	Walnut Creek, CA
10-30	Unnecessary Use of Radio	Danger / Caution	(a) Vehicle Accident (b) Vehicle Accident Personal Injury (c) Hit and Run
10-31	Crime in Progress	Pick Up	Hold Up and Robbery
10-32	Man with Gun	___ Units Needed (Specify)	Defective Traffic Light
10-33	Emergency	Need Immediate Assistance	Execute Warrant	Alarm is Sounding
10-34	Riot	Current Time	Narcotics Investigation
10-35	Major Crime Alert		Get a Stolen Auto Report	Time Check
10-36	Correct Time		Correct Time	Correct Time
10-37	(Investigate) Suspicious Vehicle		Finished With Last Assignment	Please Identify Your Unit
10-38	Stopping Suspicious Vehicle		(a) Reckless Driving (b) Drunk Driver
10-39	Urgent - Use Light, Siren		Report of a Dead Person	Can ___ Come to Radio?
Code	APCO	APCO-0	Norfolk, VA	Walnut Creek, CA
10-40	Silent Run - No Light, Siren	Fight in Progress	Suspicious Person-Auto	Is ___ Available for Phone Call?
10-41	Beginning Tour of Duty	Beginning Tour of Duty	(a) Lost Child (b) Investigate Runaway
10-42	Ending Tour of Duty	Ending Tour of Duty	Car Improperly Parked
10-43	Information	In Pursuit	Drunk
10-44	Permission to Leave ___ for ___	Riot	Disturbance (type)
10-45	Animal Carcass at ___	Bomb Threat	Fight	Subject Condition: A to D
10-46	Assist Motorist	Bank Alarm	Attempted Suicide
10-47	Emergency Road Repair at ___	Complete Assignment Quickly	(a) Injured (b) Sick (c) Demented Person (d) Maternity Case
10-48	Traffic Standard Repair at ___	Detaining Suspect, Expedite	Person Overboard
10-49	Traffic Light Out at ___	Drag Racing	Barking Dog	Proceeding to ___
Code	APCO	APCO-0	Norfolk, VA	Walnut Creek, CA
10-50	Accident: F - Fire, PI - Personal Injury, PD - Property Damage.	Vehicle Accident: F - Fire, PI - Personal Injury, PD - Property Damage.	Court Cases	Drugged
10-51	Tow Truck Needed	Dispatch Tow Truck	General Message	Drunk
10-52	Ambulance Needed	Dispatch Ambulance	Open Door / Window(state Which)	Ambulance Needed
10-53	Road Blocked at ___	Road Blocked	Gas-Repairs-Wash	Person Down
10-54	Livestock on Highway	Hit and Run Accident: F - Fire, PI - Personal Injury, PD - Property Damage.	Man Molesting Children	Possible Body
10-55	Intoxicated Driver	Intoxicated Driver	Bomb Threat	Coroner's Case
10-56	Intoxicated Pedestrian	Intoxicated Pedestrian	Unruly Crowd	Suicide (a) - Attempted
10-57	Hit and Run: F - Fire, PI - Personal Injury, PD- Property Damage.	Request BT Operator	Tampering With Automobile
10-58	Direct Traffic	Direct Traffic	Burglar Alarm
10-59	Convoy or Escort	Escort	Traffic Violator	Security Check
Code	APCO	APCO-0	Norfolk, VA	Walnut Creek, CA
10-60	Squad in Vicinity	Suspicious Vehicle	(a) Dead Dog (b) Live Dog (c) Stray Dog (d) Dog Bite
10-61	Personnel in Area	Stopping Suspicious Vehicle	Void IBM Card	Bike Theft
10-62	Reply to Message	B and E in Progress (Breaking & Entering)	Radio Test
10-63	Prepare to Make Written Copy	Prepare to Receive an Assignment	Personal Relief	Prepare to Copy
10-64	Message for Local Delivery	Crime in Progress	Eating (state Location)
10-65	Net Message Assignment	Armed Robbery	Exposure
10-66	Message Cancellation	Notify Medical Examiner	Send Tow Truck to (a) Owner Request (b) Police Request	Suspicious Person
10-67	Clear for Net Message	Report of Death	Smoke and Flames Visible	Person Calling for Help
10-68	Dispatch Information	Livestock in Roadway	In Commission on Stand-By
10-69	Message Received	Advise Telephone Number	Held Up By Bridge or Train
Code	APCO	APCO-0	Norfolk, VA	Walnut Creek, CA
10-70	Fire Alarm	Improper Parked Vehicle	Danger / Caution	Prowler
10-71	Advise Nature of Fire	Improper Use of Radio	False Alarm	Shots Fired
10-72	Report Progress on Fire	Prisoner in Custody	Person Found in Burning Building
10-73	Smoke Report	Mental Subject	Existing Conditions	How Do You Copy?
10-74	Negative	Prison / Jail Break	Enroute
10-75	In Contact with ___	Wanted or Stolen	Dispatch Mechanic
10-76	En Route ___	Prowler	Rewind Box (Give Location)
10-77	ETA (Estimated Time of Arrival)	Direct Traffic at Fire Scene	Send VEPCO (state Gas or Electric), (b) send C & P (phone)
10-78	Need Assistance		Held Up by (state)
10-79	Notify Coroner		Courtesy Call
Code	APCO	APCO-0	Norfolk, VA	Walnut Creek, CA
10-80	Chase in Progress	Fire Alarm	Critical Call (Code Red)	Explosion
10-81	Breatherlizer Report	Nature of Fire	Fire Alarm
10-82	Reserve Lodging	Fire in Progress	Additional Engine Co.
10-83	Work School Crossing at ___	Smoke Visible	Additional Ladder Co.
10-84	If Meeting ___, Advise ETA (Estimated Time of Arrival)	No Smoke Visible	Second Alarm
10-85	Delay due to ___	Respond without Blue Lights / Siren	Third Alarm
10-86	Officer / Operator on Duty		Person Trapped	Any Traffic for Me?
10-87	Pickup / Distribute Checks		Auto Fire
10-88	Present Telephone # of ___		Request Deputy Chief	Provide Cover for Units
10-89	Bomb Threat		Request Additional Chief
Code	APCO	APCO-0	Norfolk, VA	Walnut Creek, CA
10-90	Bank Alarm at ___		Transfer Fire Alarm Wire
10-91	Pick Up Prisoner / Subject		Check Fire Alarm Box or Master Box	Hazard
10-92	Improperly Parked Vehicle		Fire Alarm Circuit Open or Trouble on Circuit
10-93	Blockade		Fire Alarm
10-94	Drag Racing		Request Gas or Diesel Fuel
10-95	Prisoner / Subject in Custody		Grass or Trash Fire
10-96	Mental Subject		In Quarters
10-97	Check (Test) Signal		Signal Weak	Arrived at Scene
10-98	Prison / Jail Break		Signal Good	Completed Assignment
10-99	Wanted / Stolen Indicated		Fireman Need Help
10-100		Dead Body Found
10-101	What is Status? (Are you secure?)	What is Status? (Are you secure?)
10-106	Secure (Status is secure)	Secure (Status is secure)

10 Code Summary

10 Code Version	PDF
APCO	Download
APCO-0	Download
Norfolk VA	Download
Walnut Creek CA	Download
Full List	Download

Universal Messages Used by Most Code Versions
10-4	-- Acknowledge
10-7	-- Out of Service
10-8	-- In Service
10-20	-- Location
10-21	-- Call ____ by Phone
10-28	-- Vehicle Identification