Which description matches a Code 4 incident?

• A. The incident is escalating and more units are en route.
• B. The call has been canceled.
• C. The responding unit is unavailable.
• D. The incident is under control; no additional units are needed.

Answer: (A)

Code 4 means the situation is under control and no additional units are required. It signals that the scene has stabilized and the resources already on scene are sufficient, so officers can stand down or wrap up without bringing in more help. In the options shown, the description that matches this status is the one stating that the incident is under control and no additional units are needed. The other descriptions describe different states: escalating and more units en route implies the situation isn’t under control yet; the call being canceled means the incident is no longer active; the responding unit being unavailable indicates a resource issue rather than a controlled incident.