Which ATP covers Chemical, Biological, Radiological, and Nuclear (CBRN) Response?

• A. ATP 3-11.41
• B. ATP 3-11.42
• C. ATP 3-11.43
• D. ATP 3-11.50

Answer: (B)

Understanding which ATP covers CBRN Response comes down to matching the topic to the publication’s scope. In the ATP 3-11 series, each document targets a specific CBRN function. The one devoted to CBRN Response lays out how units should respond at a CBRN incident: defining command relationships, on-scene actions, protection of personnel, decontamination procedures, casualty care, and how to communicate and coordinate with medical teams and civilian responders. This focused treatment makes it the best fit for a question asking which publication covers responding to CBRN events. Other volumes in the same series address related areas such as prevention, protection, detection, or specialized CBRN tasks, which do not present the full response framework. So, the publication dedicated to CBRN Response is the correct reference.