What manual would you consult for guidance on CBRN operations?

The correct choice for guidance on Chemical, Biological, Radiological, and Nuclear (CBRN) operations is FM 3-11.4. This field manual specifically provides comprehensive information on CBRN operations, covering doctrine, tactics, techniques, and procedures for conducting these operations effectively. It addresses the role of CBRN units and how they integrate into joint and combined operations, making it a vital resource for personnel seeking to understand and implement CBRN capabilities in a military context.

In contrast, other manuals mentioned do not focus specifically on CBRN operations. For instance, FM 3-25.26 deals with map reading and land navigation, which is essential for operational planning and execution but does not cover CBRN aspects. FM 4-25.11 focuses on first aid, providing guidance on medical support and treatment but lacks the necessary CBRN operational details. Lastly, FM 600-8-22 pertains to military medals and awards, which is unrelated to operational guidelines for CBRN scenarios. Therefore, FM 3-11.4 is the authoritative source for addressing CBRN operations effectively.