Which document outlines postal policies for the Department of Defense?

The document that outlines postal policies for the Department of Defense is the Postal Manual 4525.6M. This specific manual provides comprehensive guidance and regulation relevant to postal operations within the military context, addressing procedures, responsibilities, and the functioning of mail services in support of military activities. It serves as an essential resource for understanding how postal services are managed and operated within the armed forces, ensuring that personnel have access to reliable mail services.

Other documents may cover related topics but do not specifically focus on postal policies. For example, PS FORM 3801 pertains to various postal services but isn't a comprehensive manual for military postal regulations. FM 1-0 usually covers military capabilities and force management without detailing postal policies. Similarly, AR 600-8-3 deals with military personnel actions and not specifically with postal operations. Thus, Postal Manual 4525.6M is the most appropriate and relevant choice for outlining postal policies within the Department of Defense.