What does the radio code 10-22 signify?

• A. Call on the phone
• B. Disregard
• C. Arrived
• D. Report to

Answer: (B)

Understanding how radio ten-codes function helps you read a scene fast. The code in question is used to cancel or negate a previous instruction. When someone says this code, it signals that action on the prior directive should stop because new information or a changed plan means it’s no longer appropriate to proceed. That quick cancel helps prevent people from acting on outdated instructions and keeps everyone in sync.

The core idea here is that this code communicates “disregard” or “do not follow the last instruction.” That makes it the correct choice for a situation where the message instructs you to ignore what was just directed. The other ideas described by the incorrect options (arriving at a scene, making a report to someone, or calling on the phone) describe actions you would take as part of a task, not a command to cancel a previous one.