The SeaPort Next Generation (SeaPort-NxG) Indefinite Delivery, Indefinite Quantity (IDIQ) contract vehicle provides services that span the entire spectrum of mission areas and technical capabilities supported by the Department of the Navy ordering activities. SeaPort NextGen is the Navy's platform for acquiring support services in two broad functional areas: Engineering Support Services and Program Management Support Services and 23 functional area subcategories. Contractors can compete for service requirements issued by the Naval Sea Systems Command, Space and Naval Warfare Systems Command, Naval Supply Systems Command, Military Sealift Command, Naval Facilities Command, Office of Naval Research, and the United States Marine Corps.