Tennessee Valley Authority; Watts Bar Nuclear Plant, Unit 1

The U.S. Nuclear Regulatory Commission (NRC) is considering issuance of an amendment to Facility Operating License No. NPF-90, issued to the Tennessee Valley Authority (TVA), for operation of the Watts Bar Nuclear Plant (WBN), Unit 1. The amendment request would revise the approved Cyber Security Plan for the WBN site, and clarify the demarcation point (so called Bright-Line) between digital components under NRC jurisdiction, and those under the jurisdiction of the Federal Energy Regulatory Commission (FERC). Specifically, certain equipment located within the WBN, but owned by the Transmission and Power Supply business unit, will be classified either as NRC-regulated or FERC-regulated. This demarcation will allow both the NRC and licensee to use the correct process for information associated with the specific equipment. For this amendment request, the NRC proposes to determine that it involves no significant hazards consideration. In addition, the amendment request contains sensitive unclassified non- safeguards information (SUNSI).