In 1991, the Base Realignment and Closure Commission recommended that the Williams Air Base close its doors. Two years later in 1993, it became a reality and the former Air Base began its search for a new identity. A plan was developed to transform the base to be an aerospace center and an educational, research and training facility with the airport serving as a reliever to Phoenix Sky Harbor International Airport. Currently, aviation uses include commercial passenger service, aircraft manufacturing, maintenance, modification, air cargo operations and flight training. In 2008, the former base became the Phoenix Mesa Gateway Airport.