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If you ever listen to a police radio or scanner you often hear them use codes that start with 10 and are preceded by another number, Such as 10-4 meaning okay or affirmative. Listed are the other Ten Codes that were created by the Association of Public Safety Communication Officials or APCO. Although some local police departments may use variations of this list, most police forces follow the list below. |
| 10-1 | Single Weak |
| 10-2 | Signal Good |
| 10-3 | Stop Transmitting |
| 10-4 | Affirmative (Okay) |
| 10-5 | Relay |
| 10-6 | Busy |
| 10-7 | Out of Service |
| 10-8 | In Service |
| 10-9 | Repeat (Say Again) |
| 10-10 | Negative |
| 10-11 | "Name" On Duty |
| 10-12 | Stand By |
| 10-13 | Exisiting Conditions |
| 10-14 | Message Information |
| 10-15 | Message Delivered |
| 10-16 | Reply to Message |
| 10-17 | Enroute |
| 10-18 | Urgent |
| 10-19 | In Contact |
| 10-20 | Location |
| 10-21 | Call "name" by Phone |
| 10-22 | Disregard |
| 10-23 | Arrived at Scene |
| 10-24 | Assignment Completed |
| 10-25 | Report to |
| 10-26 | Estimated Time of Arrival |
| 10-27 | License Information |
| 10-28 | Vehicle Ownership Information |
| 10-29 | Records Check |
| 10-30 | Danger/Caution |
| 10-31 | Pick Up |
| 10-32 | Units Needed |
| 10-33 | Help Quickly |
| 10-34 | Time |
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