What is the governing directive for hazardous materials movement by military air?

The correct choice pertains to the governing directive for the movement of hazardous materials by military air, specifically referencing Air Force Manual (AFMAN) 24-604. This manual provides the necessary guidelines and procedures to ensure the safe and effective transportation of hazardous materials within military air operations. It covers key topics such as classification, packaging, handling, and documentation, which are critical for compliance with safety regulations and adherence to legal standards regarding hazardous cargo.

While other choices may represent important legal frameworks or guidelines in military transportation, AFMAN 24-604 specifically addresses the air mobility context and ensures that personnel handling hazardous materials are equipped with the requisite information and protocols to mitigate risks. This makes AFMAN 24-604 the definitive document for this type of operation within the military air transport logistics system.