This USMC United States Marine Corps manual, Marine Corps Tactical Publication MCTP 13-10C Unit Embarkation October 2020, addresses the doctrine, techniques, and procedures for effectively managing a unit embarkation program and planning and executing mobility and embarkation operations. In the case of amphibious embarkation operations, a Marine expeditionary unit is used as an example throughout. The target audience for MCTP 13-10C is the noncommissioned officer (NCO) through captain in the mobility/embarkation military occupational specialty and other NCOs/officers assigned unit embarkation responsibilities. The guidance and relevant information herein provides commanders and their staffs an appreciation of the internal workings of a unit embarkation section and the critical role it plays in a successful unit deployment. This publication provides uniformity across the Marine Corps for integration into standing operating procedures. This publication supersedes MCRP 4-11.3G, Unit Embarkation Handbook, dated 29 July 2013.