Decommissioning Facts Decommissioning is a multi-step process that begins when a nuclear plant is retired from service. It has several key steps as the facility and systems are secured for long-term storage, carefully decontaminated and dismantled and the land restored for future use. The Nuclear Regulatory Commission (NRC), together with state and local authorities, oversees each phase of the decommissioning process. Under NRC regulations, a plant must be decommissioned within 60 years of the permanent cessation of operations. ADP – NorthStar’S Partnership With Orano Accelerated Decommissioning Partners NDCAP Presentation- September 21, 2020 NDCAP Presentation – September 21, 2020 NDCAP Presentation – May 4, 2020 NDCAP Presentation – May 4, 2020 NDCAP Presentation – January 13, 2020 NDCAP Presentation – January 13, 2020 Brattleboro Rotary Club Presentation – March 13, 2019 Brattleboro Rotary Club Presentation – March 13, 2019

Nuclear Decommissioning Citizens Advisory Panel (NDCAP) NorthStar is committed to a transparent and open decommissioning process with many opportunities for public participation. In 2014, the Vermont legislature established the Nuclear Decommissioning Citizens Advisory Panel (NDCAP) as a forum for public engagement and education on Vermont Yankee decommissioning issues. The NDCAP has 19 members, including six citizen members, two each to be appointed by the Governor, the Senate Pro-Tem and the House Speaker, as well as representatives from Vermont Yankee decommissioning stakeholder organizations. Meeting Schedule: Https://Publicservice.Vermont.Gov/Electric/Ndcap#Upcoming Meetings

Federal: Nuclear Regulatory Commission (NRC) Government Accountability Office: Spent Nuclear Fuel Management State: Agency of Natural Resources (ANR) Vermont Nuclear Decommissioning Citizens Advisory Panel (NDCAP) Vermont Department of Public Service Vermont Public Utility Commission Other Resources: Nuclear Energy Institute (NEI) World Nuclear Association: Radioactive Waste Management Orano USA – Decommissioning Vermont Yankee NorthStar Decommissioning Studies: Vermont Yankee Nuclear Power Plant: Economic Impact of Vermont Yankee Closure Vermont Yankee Nuclear Power Plant: Emergency Planning Zone