APCO 10 codes for CB radio

The following list is the current usage of various 10-codes. Some codes are standardized through out the country, while others can have completely different meanings. The most common meanings are listed below.

Code Description
10-0
  • use caution
10-1
  • poor reception
10-2
  • good reception
10-3
  • stop transmitting
  • change channels
10-4
  • message received, affirmative, ok, understood
10-5
  • relay this information to ___
10-6
  • busy
10-7
  • out of service
10-8
  • in service
10-9
  • please repeat your message
10-10
  • fight in progress, out of service
  • negative
  • transmission completed
  • welfare check
10-11
  • animal problem
  • talking too fast
  • en route
10-12
  • standby
  • visitors present
  • disregard
  • call in reports
  • at scene
  • check revocation
10-13
  • advise weather/road conditions
  • civilians present and listening
  • call-in resume
10-14
  • suspicious person or prowler
  • convoy or escort
10-15
  • civil disturbance
  • prisoner/suspect in custody
10-16
  • domestic disturbance
  • make pickup at ___
10-17
  • meet complainant
  • pick up papers at ___
  • urgent business
10-18
  • urgent
  • complete assignment ASAP
  • anything for us?
  • drunk
10-19
  • return to station
10-20
  • specify location/my location is ___
10-21
  • please telephone ___
10-22
  • disregard
  • report to ___
  • send blood technician
10-23
  • arrived at location/on scene
  • stand by on this frequency
  • status check
  • en route to call
  • sex offense
10-24
  • assignment completed
  • trouble at station
  • unit not available
  • direct traffic
10-25
  • report to ___
  • please contact ___
  • do you have contact with person
  • come in for traffic
  • officer needs help
10-26
  • detaining suspect (implying "please expedite")
  • check auto registration
  • ETA ___
  • disregard last info
  • phone residence
10-27
  • drivers license request
  • vehicle registration request
  • I am moving to channel ___
  • any answer
10-28
  • vehicle registration request
  • driver's license request
  • identify your station
  • missing person
10-29
  • arrests/warrants request
  • time is up for contact
10-30
  • unauthorized use of radio
  • danger/caution
  • special check at ___
  • juvenile
10-31
  • crime in progress
  • domestic disturbance
  • check for local warrants
  • suspicious person
10-32
  • person with gun
  • fight in progress
  • radio check
  • check NCIC
  • DWI test
10-33
  • emergency, all units stand by
  • officer needs help
  • disturbance at ___
  • fire
10-34
  • riot
  • frequency open (cancels 10-33)
  • help needed
  • trouble at jail
  • correct time
  • meet officer
10-35
  • major crime alert
  • confidential information
  • suspicious person
10-36
  • correct time of day?
10-37
  • suspicious vehicle
  • identify yourself
  • wrecker needed at ___
  • shoplifter
  • time of day?
10-38
  • stopping suspicious vehicle
  • ambulance needed
  • station report satisfactory
  • phone communications
  • vandalism
10-39
  • run with lights & siren
  • your message was delivered
  • false alarm, premises were occupied
  • contact officer
  • disturbance
10-40
  • run silent (no lights & siren)
  • false alarm, no activity, premises appears secure
  • please tune to channel ___
  • expedite
  • advise if available
  • suspicious person
  • dead animal
  • mental patient
  • lunch
10-41
  • begin duty
  • radio test
  • intoxicated person
  • debris in street
  • neighbor trouble
10-42
  • end duty
  • traffic accident at ___
  • malicious mischief
  • request dispatch times
10-43
  • information
  • traffic jam at ___
  • request criminal history
  • pick up passenger
  • armed robbery
  • rescue call
10-44
  • permission to leave patrol
  • I have a message for you
  • transmission received
  • rape
  • traffic accident (no injury)
10-45
  • animal carcass
  • pick up officer
  • fueling vehicle
  • all units in range please report
  • coffee break
  • traffic accident (injury)
  • non-injury accident ()
10-46
  • motorist assist
  • lunch break
  • fuel break
  • wrecker
  • injury accident ()
10-47
  • emergency road repair
  • call home
  • missing person
  • drunk driver
  • blood run
  • license plate check ()
10-48
  • traffic control
  • request criminal history
  • runaway juvenile
  • use caution
10-49
  • traffic light out
  • en route to assignment
  • bathroom break
  • any traffic
  • serving warrant
10-50
  • accident
  • no messages
  • break channel
  • auto accident with property damage
10-51
  • wrecker needed
  • auto accident with injuries
  • phone message
10-52
  • ambulance needed
  • fatal auto accident
  • message for assignment
  • alarm
10-53
  • road blocked
  • silent alarm
10-54
  • animals on highway
  • silent pursuit
  • car stop
10-55
  • intoxicated driver or DWI
  • security check
  • ambulance call
10-56
  • intoxicated pedestrian
  • warrant indicated
  • arrived at scene
10-57
  • hit & run accident
  • narcotics
  • officer at pistol range
10-58
  • direct traffic
  • wrecker
  • DOA
  • teleprinter message
10-59
  • escort or convoy
  • out of car checking violation
  • ambulance
  • bomb threat
10-60
  • squad in vicinity
  • traffic stop
  • what is next message number?
  • coffee break
  • assist motorist
10-61
  • personnel in vicinity
  • stand by for CW traffic
  • clear of traffic stop
  • weather conditions?
  • lunch break
10-62
  • reply to message
  • unable to copy, use phone
  • check for rising water
  • logged on/off
10-63
  • prepare to copy
  • make written copy
  • net directed to ___
  • need barricades
10-64
  • local message
  • message for delivery
  • net clear, resume normal traffic
  • field investigator
10-65
  • net message assignment
  • kidnapping
10-66
  • net message cancellation
  • bathroom break
10-67
  • clear for next message
  • prepare to copy
  • person calling for help
  • all units comply
10-68
  • dispatch message
  • repeat dispatch
  • switch channels
10-69
  • message received
  • any calls holding for me?
  • sniper
10-70
  • fire alarm
  • fire
  • fire followup
  • prowler
  • net message
  • chemical spill
10-74
  • negative
10-76
  • enroute to location
  • fresh coffee
10-78
  • need assistance
  • major accident with injury
  • request wrecker
10-79
  • notify coroner
  • bomb threat
  • hit & run
10-80
  • pursuit in progress
  • bomb has exploded
  • tower lights out
  • on assignment
  • demonstration
10-81
  • breathalyzer request
  • stop for interrogation
  • reserve hotel room
  • officer ___ will be at your station
  • at vehicle maintenance
  • civil disturbance/riot
10-82
  • reserve lodging
  • stop for interrogation/arrest
  • traffic signal out
  • cover assistance
10-83
  • work/school crossing detail
  • call station
  • units stop transmitting
  • at radio shop
  • officer in trouble
10-84
  • advise ETA
  • checking officer status
  • my telephone number is ___
  • follow-up
  • broken utility main
10-85
  • arrival delay due to ___
  • prepare to copy info
  • my address is ___
  • loose livestock
10-86
  • officer on-duty
  • utility line down
10-87
  • pickup or prisoner transfer
  • pickup payroll check
  • dead body
10-88
  • advise telephone
  • station call
  • special assignment
  • true alarm
10-89
  • bomb threat
  • send radio repair
  • officer at academy
10-90
  • bank alarm
  • radio repair to be at station
  • officer at headquarters
  • false alarm
10-91
  • pick up prisoner/suspect
  • talk closer to the mike
  • prepare your inspection
  • vehicle fuel
  • bank holdup alarm
10-92
  • parking violation
  • your signal is weak
  • officer at court
10-93
  • blockage
  • please check my frequency
10-94
  • street racing
  • give me a long count
10-95
  • prisoner/suspect in custody
  • transmit dead carrier for 5 seconds
10-96
  • mental patient
  • detain prisoner/suspect
10-97
  • test signal
  • arrived at scene
  • possible wanted person in vehicle
  • known offender
  • officer at court
10-98
  • prison/jail break
  • criminal history indicated
  • officer at juvenile court
  • assignment complete
10-99
  • warrants/stolen indicated
  • officer needs assistance/held hostage
  • mission complete
  • bathroom break
10-100
  • bathroom break
  • dead body
10-200
  • police needed