Which 10-CODE is used to establish traffic at a checkpoint?

• A. 10-20
• B. 10-11
• C. 10-14
• D. 10-12

Answer: (C)

In radio shorthand, you use concise codes to quickly convey what’s happening. When a checkpoint goes up and traffic needs to be directed, the code that communicates “traffic at location” is used. This signals to dispatch and nearby units that traffic control is in effect at a specific site, and that officers are directing vehicles through the checkpoint. It’s the best fit because it specifically indicates both the action (traffic) and the site (location), which helps coordinate positioning, additional resources, and the flow of vehicles. Other codes point to different situations—where you are, someone talking rapidly, or people present at the site—but they don’t convey that traffic is actively being established and managed at a checkpoint.