Editing Expendable launch system (section)

===United States===
{{Main| Space Launch System|National Security Space Launch}}
Several governmental agencies of the United States purchase ELV launches. [[NASA]] is a major customer with the [[Commercial Resupply Services]] and [[Commercial Crew Development]] programs, also launching scientific spacecraft. The vast majority of launch vehicles for its missions, from the [[Redstone missile]] to the [[Delta (rocket family)|Delta]], [[Atlas (rocket family)|Atlas]], [[Titan (rocket family)|Titan]] and [[Saturn (rocket family)|Saturn]] rocket families, have been expendable. As its flagship crewed exploration replacement for the partially reusable [[Space Shuttle]], NASA's newest ELV, the [[Space Launch System]] flew successfully in November 2022 after delays of more than six years. It is planned to serve in a major role on crewed exploration programs going forward.<ref>{{Cite web |last=Gebhardt |first=Chris |last2=Burghardt |first2=Thomas |date=2022-11-16 |title=SLS makes successful debut flight, sending Artemis I to the Moon |url=https://www.nasaspaceflight.com/2022/11/artemis-i-launch-nov/ |access-date=2022-11-19 |website=NASASpaceFlight.com |language=en-US}}</ref><ref name="nasa-blog-20221108">{{cite web |url=https://blogs.nasa.gov/artemis/2022/11/08/nasa-prepares-rocket-spacecraft-ahead-of-tropical-storm-nicole-re-targets-launch/ |title=NASA Prepares Rocket, Spacecraft Ahead of Tropical Storm Nicole, Re-targets Launch |work=[[NASA]] |date=8 November 2022 |access-date=8 November 2022}}</ref>

The [[United States Air Force]] is also an ELV customer, having designed the Titan, Atlas, and Delta families. The [[Atlas V]] from the 1994 Evolved ELV (EELV) program remains in active service, operated by [[United Launch Alliance]].<ref>{{Cite web |url=http://www.spaceref.com/news/viewpr.html?pid=16790 |title=Boeing, Lockheed Martin to Form Launch Services Joint Venture {{!}} SpaceRef - Your Space Reference |access-date=2006-02-28 |archive-date=2012-12-09 |archive-url=https://archive.today/20121209234346/http://www.spaceref.com/news/viewpr.html?pid=16790 |url-status=dead }}</ref> The [[National Security Space Launch]] (NSSL) competition has selected two EELV successors, the expendable [[Vulcan Centaur]] and partially reusable [[Falcon 9]], to provide assured access to space.<ref name=sn20200807>{{cite news |url=https://spacenews.com/pentagon-picks-spacex-and-ula-to-launch-national-security-satellites-for-next-five-years/ |last=Erwin|first=Sandra |title=Pentagon picks SpaceX and ULA to remain its primary launch providers |work=[[SpaceNews]] |date=7 August 2020 |access-date=24 August 2022}}</ref>