Department Guides

10-Codes & Radio Reference

A quick reference for radio communications during patrol. Keep radio traffic professional, brief, and clear. Follow any instructions from dispatch and command staff.

This is a proposed NSRP reference list, not a verified official NSRP codebook. Command staff should approve the codes before members are expected to use them.

10-Codes

General Communications

10-1Signal weak
10-2Signal good
10-3Stop transmitting
10-4Acknowledged / Copy
10-5Relay message
10-6Busy
10-7Out of service
10-8In service / Available
10-9Repeat last transmission
10-10Fight in progress
10-12Stand by
10-13Officer needs assistance
10-15Subject in custody
10-17En route
10-19Return to station
10-20Location
10-21Call by phone
10-22Disregard / Cancel
10-23Arrived on scene
10-24Assignment completed
10-27Driver's license information
10-28Vehicle registration information
10-29Check for warrants
10-32Request backup
10-33Emergency traffic
10-38Traffic stop
10-41Beginning tour of duty
10-42Ending tour of duty
10-50Vehicle collision
10-51Request tow
10-52Request EMS
10-76En route
10-78Request assistance
10-80Vehicle pursuit
10-97Arrived at location
10-98Assignment completed

Radio Etiquette

  • ·Keep transmissions short and relevant.
  • ·State your callsign and location when appropriate.
  • ·Do not talk over emergency traffic.
  • ·Give clear updates during traffic stops and pursuits.
  • ·Request backup when needed.
  • ·Use plain language if a code is unclear.
  • ·Do not invent codes or use codes to confuse other departments.