TCTOs are used to accomplish and provide a record of any one-time inspection, removal and replacement or installation of components, retrofit change or alteration to the design or construction of any aeronautical, non-aeronautical, Communication-Electronic (CE), air launched or surface launched missile, space vehicle systems or ground vehicles, their related equipment, site, facility, support systems, and associated Support Equipment (SE) maintained by the Air Force. If specified by the acquiring activity, TCTOs may also be used to announce computer program changes affecting weapon systems, Automatic Test Equipment (ATE), simulator, and on board command and control systems utilizing digital/computer systems. The military unique requirements for TCTOs covered by this specification are as specified in TOs 00-5-1 and 00-5-15.