What primarily drives most publication control practices?

The correct answer centers on the importance of a Unit Standard Operating Procedure (SOP) in driving publication control practices. A Unit SOP details specific guidelines, processes, and responsibilities tailored to that unit’s operational needs and environment. This ensures that all personnel are aware of the correct procedures for managing publications, maintaining accountability, and ensuring compliance with regulations unique to the unit's mission.

While a commander's directive can set the framework and expectations for publication control, ultimately, it is the SOP that provides the specific, actionable steps for personnel. It serves as a guide for daily operations, ensuring that everyone understands their role in maintaining and controlling published materials within the unit.

National policies and safety regulations also play a role in the broader context of publication control, but they are often more generic and not as directly applicable to the nuanced needs of a specific unit. Therefore, the Unit SOP is critical in operationalizing these policies effectively at the unit level and ensuring that all members consistently follow the established protocols.