In the Matter of Kairos Power LLC; Hermes Test Reactor; Extension of Latest Date for Completion of Construction

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. 50-7513; NRC-2021-0193] AGENCY: Nuclear Regulatory Commission. ACTION: Order; issuance. SUMMARY: The U.S. Nuclear Regulatory Commission (NRC) has approved the Kairos Power LLC (Kairos) request to amend Construction Permit No. CPTR-6 for the Hermes test reactor facility in Oak Ridge, Tennessee. The approved amendment extends the latest date for completion of the construction of the Hermes test reactor facility from December 31, 2026, to April 30, 2029. DATES: The Order was issued on May 13, 2026. ADDRESSES: Please refer to Docket ID NRC-2021-0193 when contacting the NRC about the availability of information regarding this document. You may obtain publicly available information related to this document using any of the following methods: Federal Rulemaking website: Go to https://www.regulations.gov and search for Docket ID NRC-2021-0193. Address questions about Docket IDs in Regulations.gov to Bridget Curran; telephone: 301-415-1003; email: Bridget.Curran@nrc.gov . For technical questions, contact the individual(s) listed in the For Further Information Contact section of this document. NRC's Agencywide Documents Access and Management System (ADAMS): You may obtain publicly available documents online in the ADAMS Public Documents collection at https://www.nrc.gov/​reading-rm/​adams.html . To begin the search, select “Begin ADAMS Public Search.” For problems with ADAMS, please contact the NRC's Public Document Room…