America's National Museum of the Cold World War Act of 2021 This bill authorizes the Strategic Air Command and Aerospace Museum located in Ashland, Nebraska, to be referred to as America’s National Museum of the Cold War. The bill states that the Strategic Air Command and Aerospace Museum is not a unit of the National Park System. The authorization to refer to the museum as America’s National Museum of the Cold War shall not be construed as requiring or authorizing federal funds to be expended for any purpose related to the museum.