{
  "id": "2026-10-26",
  "date": "2026-10-26",
  "date_display": "Mon Oct 26, 2026",
  "timezone": "America/Chicago",
  "shift": "Day shift",
  "seed": true,
  "as_of": "2026-10-26",
  "headline": "NRC rule lets applicants lean on DOE and DOW test data; Antares says Mark-1 cleared its first DOE gate",
  "turnover": [
    "No watchlist item met the alert threshold Fri Oct 23 through Mon Oct 26.",
    "The NRC's final rule on reusing DOE and Department of War (DOW) reactor data appeared in the Federal Register on Oct 26; it takes effect Nov 25, 2026.",
    "Antares says DOE approved the Mark-1 NSDA. That is the first DOE authorization gate, not a permit to operate, and it is logged as a pending promise.",
    "NRC holds its second licensing-pathways workshop on Wednesday, Oct 28."
  ],
  "sections": [
    {
      "id": "watchlist",
      "plant_term": "Rounds",
      "title": "Watchlist sweep · Fri Oct 23 to Mon Oct 26",
      "items": [
        {
          "title": "Nothing material",
          "body": "The sweep turned up no docket, filing or announcement that met the threshold for an out-of-cycle alert, so none was sent.",
          "grade": null,
          "as_of": "2026-10-26",
          "sources": []
        }
      ]
    },
    {
      "id": "tech-spec",
      "plant_term": "Tech Spec LCO",
      "title": "Regulatory conditions",
      "items": [
        {
          "title": "NRC final rule: reactor designs previously authorized by DOE or DOW",
          "condition": "Final rule signed Oct 22, 2026 and announced that day (NRC news release 26-081); published in the Federal Register Oct 26, 2026 (91 FR 67195, FR Doc. 2026-21801).",
          "required_action": "Effective Nov 25, 2026. New §50.43(f) and revised §53.440(a)(1) let a commercial applicant reference information from a reactor that DOE or DOW authorized, tested and showed to function safely.",
          "body": "The rule text keeps the burden on the applicant: it must show how the prior authorization satisfies NRC requirements and address any differences in design, site, hazards or safety assumptions. The NRC says the rule does not delegate its review to DOE or DOW and does not change the §50.43(e) safety standard. It drew 136 unique comment submissions.",
          "watch": "Companies describing a DOE-track criticality as an NRC shortcut. Under this rule, DOE data can narrow the NRC's review; they do not replace it.",
          "grade": "A",
          "as_of": "2026-10-26",
          "sources": [
            {
              "label": "Federal Register 2026-21801",
              "url": "https://www.federalregister.gov/documents/2026/10/26/2026-21801/nrc-reviews-of-reactor-designs-previously-authorized-by-us-department-of-energy-or-department-of-war"
            },
            {
              "label": "NRC news release 26-081",
              "url": "https://www.nrc.gov/about-nrc/news-releases/2026/26-081"
            }
          ]
        },
        {
          "title": "NRC advisory 26-034-A: second new-reactor licensing pathways workshop",
          "condition": "Announced Oct 23, 2026. “License to Launch Workshop #2: Building the Bridge: From DOE Authorization to NRC Licensing.”",
          "required_action": "Wed Oct 28, 2026, 12:30–4:30 pm ET (11:30 am–3:30 pm CT), NRC headquarters in Rockville, MD, or on Microsoft Teams. Preregistration required.",
          "body": "The topic is the same pathway the final rule opens: moving from a DOE authorization to an NRC license.",
          "watch": null,
          "grade": "A",
          "as_of": "2026-10-26",
          "sources": [
            {
              "label": "NRC advisory 26-034-A",
              "url": "https://www.nrc.gov/about-nrc/news-releases/2026/26-034-a"
            }
          ]
        }
      ]
    },
    {
      "id": "criticality-log",
      "plant_term": "Criticality Log",
      "title": "Approach to critical",
      "items": [
        {
          "title": "Antares Mark-1: company says DOE approved its NSDA",
          "body": "In an Oct 23 release, Antares says DOE approved the Mark-1 Nuclear Safety Design Agreement (NSDA). The company targets several months at full electrical power at INL in 2027 and Army Janus deliveries at Fort Bragg from 2028. The NSDA is the first DOE authorization step; the preliminary and final safety analyses (PDSA, DSA) are still ahead. For scale, Antares's Mark-0 went from NSDA to zero-power criticality in about eight months.",
          "watch": "Grade C: a company release. Logged as a new pending row in the Promise Ledger (made Oct 23, 2026; targets 2027 and 2028). The row will be updated, not rewritten, as dates hold or move.",
          "grade": "C",
          "as_of": "2026-10-26",
          "sources": [
            {
              "label": "Antares release",
              "url": "https://antaresindustries.com/updates/mark-1-nsda-approval"
            }
          ]
        }
      ]
    },
    {
      "id": "lookahead",
      "plant_term": "Next shift",
      "title": "Lookahead",
      "items": [
        {
          "title": "Wed Oct 28",
          "body": "NRC License to Launch Workshop #2 (DOE authorization to NRC licensing).",
          "grade": "A",
          "as_of": "2026-10-26",
          "sources": [
            {
              "label": "NRC advisory 26-034-A",
              "url": "https://www.nrc.gov/about-nrc/news-releases/2026/26-034-a"
            }
          ]
        },
        {
          "title": "Wed Nov 25",
          "body": "DOE/DOW-data final rule takes effect.",
          "grade": "A",
          "as_of": "2026-10-26",
          "sources": [
            {
              "label": "Federal Register 2026-21801",
              "url": "https://www.federalregister.gov/documents/2026/10/26/2026-21801/nrc-reviews-of-reactor-designs-previously-authorized-by-us-department-of-energy-or-department-of-war"
            }
          ]
        }
      ]
    }
  ],
  "note": "Seed Shift Brief: the first public brief, built only from items already verified in the working notes. Archive in the Control Room (coming soon)."
}