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.