The SIAT organization is responsible for leading Marine Air-Ground Task Force systems engineering and integration efforts, ensuring Marine Corps systems interoperability with coalition and joint forces, and identifying and pursuing science and technology transition opportunities for Marine Corps systems. The Deputy Commander (DC) SIAT is the technical authority for all Marine Corps Systems Command and Program Executive Officer Land Systems programs. The Marine Corps Tactical System Support Activity and Amphibious Vehicle Test Branch at Camp Pendleton, Calif., also fall under the SIAT organization.