Union Electric Company, dba Ameren Missouri; Callaway Plant, Unit No. 1

Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Nuclear Regulatory Commission [Docket No. 50-483; NRC-2023-0190] AGENCY: Nuclear Regulatory Commission. ACTION: License amendment application; opportunity to comment, request a hearing, and petition for leave to intervene. SUMMARY: The U.S. Nuclear Regulatory Commission (NRC) is considering issuance of an amendment to Renewed Facility Operating License No. NPF-30, issued to Union Electric Company, doing business as (dba) Ameren Missouri, for operation of the Callaway Plant, Unit No. 1. The proposed amendment would revise the technical specifications (TSs), TS Bases, and Final Safety Analysis Report (FSAR), to allow use of one train of the normal, non-safety-related service water system to solely provide cooling water support for one of two redundant trains of TS-required equipment when both equipment trains are required to be Operable during cold shutdown/refueling conditions. Corresponding changes to the TS Bases will be made once the amendment to the TSs and FSAR is approved. DATES: Submit comments by December 13, 2023. Request for a hearing or petitions for leave to intervene must be filed by January 12, 2024. ADDRESSES: You may submit comments by any of the following methods; however, the NRC encourages electronic comment submission through the Federal rulemaking website: Federal rulemaking website: Go to https://www.regulations.gov and search for Docket ID NRC-2023-0190. Address questions about Docket IDs in Regulations.gov to Stacy Schumann; telephone: 301-415-0624; ema…