The purpose of this legislation is to streamline the process for disposing of certain federal buildings that are no longer in active use. It aims to allow the government to sell or lease these properties, potentially reducing costs and improving efficiency in managing federal real estate. Key provisions of the legislation include the requirement for the Administrator of General Services to dispose of specific federal buildings in Washington, D.C. This includes notable buildings like the Frances Perkins Federal Building and the James V. Forrestal Building.