Official Radio Ten Codes

Welcome to the official radio ten codes page used by police, fire, EMS, and search and rescue crews. Ten codes are signals used to represent common phrases in radio communication efficiently. Familiarizing yourself with these codes can enhance communication and coordination during emergency response operations.

Radio Ten Codes

Code Meaning
10-1Unable to copy – Change location
10-2Signal good
10-3Stop transmitting
10-4Acknowledgement
10-5Relay (to)
10-6Busy, standby
10-7Out of service
10-8In service
10-9Repeat
10-10Negative
10-11Dispatching too rapidly
10-12Stand by
10-13Weather/road conditions
10-14Provide assistance
10-15Civil disturbance
10-16Domestic disturbance
10-17Meet complainant
10-18Complete quickly
10-19Return to station
10-20Location
10-21Telephone
10-22Disregard
10-23Arrived at scene
10-24Assignment complete
10-25Report in person
10-26Detaining subject – expedite
10-27Driver’s license information
10-28Vehicle registration information
10-29Check for warrants
10-33Alarm sounding / Alarm activation
10-34Riot
10-35Major crime alert
10-39Respond with siren and lights
10-40Silent run – No lights, no sirens
10-41Beginning tour of duty
10-42Ending tour of duty
10-43Information
10-46Assist motorist
10-47Emergency road repairs needed
10-50Accident (F, PI, PD)
10-52Ambulance needed
10-70Fire alarm
10-76En route
10-77Estimated time of arrival
10-78Need assistance
10-97Arrived on the scene
10-98Assignment completed

→ Highlighted codes are commonly used in Search and Rescue (SAR) operations.

These ten codes are a standardized system used to facilitate clear and concise radio communication within emergency response agencies. Knowing and understanding these codes can help streamline communication during critical situations. Should you have any questions or need more information regarding radio protocols, feel free to reach out to your local emergency services. Stay safe and stay informed during emergency operations.

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