This standard establishes the functional requirements for full-scope nuclear power plant control room simulators for use in operator training and examination.1) The standard also establishes criteria for the scope of simulation@ performance@ and functional capabilities of simulators. This standard does not address simulators for test@ mobile@ and research reactors@ or for reactors not subject to U.S. Nuclear Regulatory Commission (NRC) licensing. This standard does not establish criteria for the use of simulators in training programs. 1) Guidance is provided in Appendix D to adapt this standard to part-task and limited-scope simulators to ensure fidelity appropriate to the intended use for operator training and examination.