The NRC is issuing a Notice of Intent to prepare a supplement to the 2020 final Supplemental Environmental Impact Statement (NUREG-1437, Supplement 10, Second Renewal) for the subsequent license renewal (SLR) of Peach Bottom Atomic Power Station Units 2 and 3, located in York County, Pennsylvania. The supplement is required because the Commission determined in 2022 that the prior environmental review relied on a generic EIS that did not cover SLR periods, rendering those reviews inadequate. The supplement will incorporate new information, including the 2024 updated License Renewal GEIS and associated final rule, and will be issued for public comment before the NRC completes its SLR environmental evaluation for Peach Bottom.1