This publication has a dual purpose: to assist operational-level planners in aligning the design of their logistic concepts of operations with the policies and procedures of joint logistics and to provide operational-level planners with information about the operational-level logistic capabilities of the Marine Corps and other Services. This publication is intended for commanders and their staffs who are responsible for designing, planning, coordinating, and executing operational-level logistic support at the operational level of war. Audiences also include those Marine forces assigned to a Marine Corps component command as well as other Services or Department of Defense agencies who will benefit from a greater understanding of Marine Corps operational-level logistics. This publication supersedes MCWP 4-12, Operational-Level Logistics, dated 30 January 2002.