[5] The complex as rechristened as SLC-37 with the first launch of the Delta IV on November 20, 2002, carrying Eutelsat 70A to geostationary transfer orbit.

On December 21, 2004, SLC-37 supported the maiden flight of the Delta IV Heavy, which aimed at carrying a boilerplate and an assortment of small satellites into orbit.

The next year, citing issues that sprang up with competition, Boeing announced that Delta operations at the pad and at SLC-17 would be combined with those of Atlas V at Space Launch Complex 41 (SLC-41) as part of a joint venture with Lockheed Martin.

[6] Almost all payloads launched were governmental in nature, with a majority of that subsection being military customers such as the Air Force, the United States Navy, and the National Reconnaissance Office.

Some notable missions launched from the facility include GOES-N, GOES-O, and GOES-P for NOAA throughout the late 2000s, Exploration Flight Test-1 for NASA's Orion spacecraft in 2014, and the Parker Solar Probe in 2018.

[7] Following the retirement of the Delta IV, the Federal Aviation Administration announced that they would be creating a draft Environmental Impact Statement (EIS) for the potential use of SpaceX's Starship at SLC-37, despite the pad not being officially leased out to anyone by the United States Space Force.

[1] The draft was originally set to be released by December 2024 but subsequently was delayed to Spring 2025, with the final study being due by September of that year.