10 C.F.R. § 55.4
As used in this part:
Act means the Atomic Energy Act of 1954, including any amendments to the Act.
Actively performing the functions of an operator or senior operator means that an individual has a position on the shift crew that requires the individual to be licensed as defined in the facility's technical specifications, and that the individual carries out and is responsible for the duties covered by that position.
Commission means the Nuclear Regulatory Commission or its duly authorized representatives.
Controls when used with respect to a nuclear reactor means apparatus and mechanisms the manipulation of which directly affects the reactivity or power level of the reactor.
Facility means any utilization facility as defined in part 50 of this chapter. In cases for which a license is issued for operation of two or more facilities, facility means all facilities identified in the license.
Facility licensee means an applicant for or holder of a license for a facility.
Licensee means an individual licensed operator or senior operator.
Operator means any individual licensed under this part to manipulate a control of a facility.
Performance testing means testing conducted to verify a simulation facility's performance as compared to actual or predicted reference plant performance.
Physician means an individual licensed by a State or territory of the United States, the District of Columbia or the Commonwealth of Puerto Rico to dispense drugs in the practice of medicine.
Plant-referenced simulator means a simulator modeling the systems of the reference plant with which the operator interfaces in the control room, including operating consoles, and which permits use of the reference plant's procedures.
Reference plant means the specific nuclear power plant from which a simulation facility's control room configuration, system control arrangement, and design data are derived.
Senior operator means any individual licensed under this part to manipulate the controls of a facility and to direct the licensed activities of licensed operators.
Simulation facility means one or more of the following components, alone or in combination: used for either the partial conduct of operating tests for operators, senior operators, and license applicants, or to establish on-the-job training and experience prerequisites for operator license eligibility:
Systems approach to training means a training program that includes the following five elements:
United States, when used in a geographical sense, includes Puerto Rico and all territories and possessions of the United States.
10 C.F.R. §55.4