This International Standard applies to the design and manufacture and some installation aspects of a RECORD AND VERIFY SYSTEM (RVS) for use in RADIOTHERAPY in human medical practice that a) provides@ defines@ or displays treatment machine set up data; imports data either through input by the OPERATOR or directly from other devices@ b) may control the ability of that equipment to operate; c) records data of all TREATMENT sessions; and d) is intended to be: 1) for NORMAL USE@ under the authority of appropriately licensed or QUALIFIED PERSONS@ by OPERATORS having the required skills and training; 2) maintained in accordance with the recommendations given in the INSTRUCTIONS FOR USE; and 3) used within the environmental and electrical supply conditions specified in the technical description. This standard does not address dynamic beam deliveries. NOTE This may be addressed in a future version of this standard. It does@ however@ address certain specific aspects of the connection of the RVS to a network or to other radiotherapy equipment@ and the communication protocol to be used.