Radiation therapy machines and associated devices and equipment; treatment planning & simulation; computer systems; installation, maintenance & repair; general administrative and facility requirements; shielding and safety design; technical requirements; safety & operating procedures; radiation protection devices and monitoring; personnel licensure, education, training and supervision; quality assurance/management; authorized users, operators & medical physicists; radiation safety committee; radiation safety officer; radiation protection program, including authority and responsibilities; surveys and survey instruments; calibration; definitions; forms; fees; registration; records; notifications; reporting; medical & recordable events; signage; posting; written & oral directives; mobile services; radiation dose & dosimetry; particle accelerator controls and interlock systems; ventilation systems; and warning devices.