Ten Codes

*Common CB Radio Ten Codes*
10-1	Receiving poorly	10-34	Trouble at this station
10-2	Receiving well	10-35	Confidential information
10-3	Stop transmitting	10-36	Correct time is
10-4	Acknowledgement (OK)	10-37	Wrecker needed at
10-5	Relay message to ____	10-38	Ambulance needed at
10-6	Busy, please stand by	10-39	Your message delivered
10-7	Going of the air, out of action	10-41	Please turn to channel ____
10-8	On the air, available for contacts	10-42	Traffic accident at ____
10-9	Please repeat	10-43	Traffic tie up at
10-10	Transmission completed, standing by	10-44	I have a message for you
10-11	Talking too rapidly	10-45	All units within range please report
10-12	Visitors present	10-50	Break channel
10-13	Advise Weather/Road conditions	10-60	What is next message number?
10-16	Make pick up at ____	10-62	Unable to copy, use phone
10-17	Urgent business	10-63	Net directed to
10-18	Have you anything for us?	10-64	Net clear
10-19	Nothing for you, return to base	10-65	Awaiting your next message /assignment
10-20	My location is ____	10-67	All units comply
10-21	Call by telephone	10-70	Fire at ____
10-22	Report in person to ____	10-71	Proceed with transmission in sequence
10-23	Stand by	10-77	Negative contact
10-24	Completed last assignment	10-81	Reserve hotel room for ____
10-25	Can you contact ____	10-82	Reserve room for ____
10-26	Disregard last information	10-84	My telephone number is ____
10-27	I am moving to channel ____	10-85	My address is ____
10-28	Identify your station	10-91	Talk closer to the microphone
10-29	Time is up for contact	10-93	Check my frequency on this channel
10-30	Does not conform to FCC rules	10-94	Please count for me from one to ten
10-32	I will give you a radio check	10-99	Mission completed, all units secure
10-33	Emergency Traffic	10-200	Police needed at ____
Codes in bold are the most commonly used codes

*Official Ten-Code List*
Association of Public Communications Officers (APCO)
10-0	Caution	10-50	Accident (fatal, injury or damage)
10-1	Unable to copy -- change location	10-51	Wrecker needed
10-2	Signal good	10-52	Ambulance needed
10-3	Stop transmitting	10-53	Road blocked at ...
10-4	Acknowledgement (OK)	10-54	Livestock on highway
10-5	Relay	10-55	Suspected Driving Under the Influence
10-6	Busy -- stand by unless urgent	10-56	Intoxicated pedestrian
10-7	Out of service	10-57	Hit and run incident
10-8	In service	10-58	Direct traffic
10-9	Repeat	10-59	Convoy or escort
10-10	Fight in progress	10-60	Squad in vicinity
10-11	Dog case	10-61	Isolate self for message
10-12	Stand by (stop)	10-62	Reply to message
10-13	Weather -- road report	10-63	Prepare to make written copy
10-14	Prowler report	10-64	Message for local delivery
10-15	Civil disturbance	10-65	Net message assignment
10-16	Domestic disturbance	10-66	Message cancellation
10-17	Meet complainant	10-67	Clear for net message
10-18	Quickly	10-68	Dispatch information
10-19	Return to ...	10-69	Message received
10-20	Location	10-70	Fire
10-21	Call ... by telephone	10-71	Advise nature of fire
10-22	Disregard	10-72	Report progress on fire
10-23	Arrived at scene	10-73	Smoke report
10-24	Assignment completed	10-74	Negative
10-25	Report in person (meet) ...	10-75	In contact with ...
10-26	Detaining subject, expedite	10-76	En route ...
10-27	Drivers license information	10-77	ETA (estimated time of arrival)
10-28	Vehicle registration information	10-78	Need assistance
10-29	Check for wanted	10-79	Notify coroner
10-30	Unnecessary use of radio	10-80	Chase in progress
10-31	Crime in progress	10-81	Breathalyzer
10-32	Man with gun	10-82	Reserve lodging
10-33	Emergency	10-83	Work school crossing at ...
10-34	Riot	10-84	If meeting ... advise ETA
10-35	Major crime alert	10-85	Delayed due to ...
10-36	Correct time	10-86	Officer/operator on duty
10-37	(Investigate) suspicious vehicle	10-87	Pick up/distribute checks
10-38	Stopping suspicious vehicle	10-88	Present telephone number of ...
10-39	Urgent -- use light, siren	10-89	Bomb threat
10-40	Silent run -- no light, siren	10-90	Bank alarm at ...
10-41	Beginning tour of duty	10-91	Pick up prisoner/subject
10-42	Ending tour of duty	10-92	Improperly parked vehicle
10-43	Information	10-93	Blockade
10-44	Permission to leave ... for ...	10-94	Drag racing
10-45	Animal carcass at ...	10-95	Prisoner/subject in custody
10-46	Assist motorist	10-96	Mental subject
10-47	Emergency road repairs at ...	10-97	Check (test) signal
10-48	Traffic standard repair at ...	10-98	Prison/jail break
10-49	Traffic light out at ...	10-99	Wanted/stolen indicated
Plain speech communications over public safety radio systems is preferred over the traditional 10-Codes and dispatch signals. APCO provided a core list of codes from 10-1 to 10-39. Other codes are optional and non-standard across jurisdictions and may be problematic if multiple organisations must respond to the same incident. Standardized codes are shown in bold.

What are Ten Codes?