10-10

Government & Politics abbreviation · Police Code

10-10 stands for Fight in progress, a police code abbreviation.

Code on the 1974 APCO list meaning a fight is in progress, used to send officers to a brawl or assault. In CB radio usage, 10-10 means a transmission is finished and the station is standing by.

Example: Units respond, 10-10 in the parking lot behind the stadium.

Usage notes

Meanings differ sharply: some police agencies use 10-10 for "negative" or "off duty," and CB users say "10-10 till we do it again" as a sign-off. Such inconsistencies are a key reason federal guidance favors plain language when agencies work together.

Related abbreviations

More police code abbreviations

• 10-1 – Receiving poorly
• 10-100 – Restroom break
• 10-13 – Weather and road report
• 10-16 – Domestic problem
• 10-17 – Meet complainant
• 10-18 – Quickly
• 10-19 – Return to station
• 10-2 – Receiving well
• 10-20 – Location
• 10-21 – Call by telephone
• 10-22 – Disregard
• 10-23 – Arrived at scene

See all 49 police code abbreviations →

Edited by the AbbreviationList.com team. Spotted an error or a missing meaning? Contact us.