The 1st Maintenance Battalion is a battalion of the United States Marine Corps that provide intermediate-level maintenance for the I Marine Expeditionary Force’s tactical ordnance, engineer, motor transport, communications electronics and general support ground equipment. The Marines and Sailors of 1st Maintenance Battalion are regularly assigned and deployed around the world with task-organized logistics command elements that deliver responsive, exceptional tactical logistics support to I MEF units. The command is based out of Las Pulgas, Marine Corps Base Camp Pendleton, California and is organized under the command of Combat Logistics Regiment 15 within 1st Marine Logistics Group.