The 36 Combat Service Support Detachment (USMC), often abbreviated as CSSD, is a unit within the United States Marine Corps (USMC). This detachment plays a crucial role in combat service support, which encompasses logistics, administration, and technical services necessary to sustain military operations. The 36 CSSD's responsibilities include supply, maintenance, transportation, communications, and other essential services to ensure the readiness of USMC forces during both peacetime and wartime. It operates under the command of the Logistics Combat Element (LCE) of a Marine Expeditionary Unit (MEU). The detachment's specific role may vary depending on the mission requirements and deployment scenarios.