U.S. Nuclear Regulatory Commission (NRC)

The U.S. Nuclear Regulatory Commission is the federal civilian-nuclear regulator with statutory authority over commercial reactor operations under 10 CFR Parts 50 and 52, fuel cycle facilities under Part 70, and source materials including uranium milling and in-situ recovery under Part 40. Unlike the Department of War entity covered in the prior masses-layer entry, the NRC does not pay money, take equity, or sign procurement contracts; its connections to portfolio holdings are structural — licensing, license-amendment approval, and license-transfer approval gates that decide whether facilities operate, expand, or change hands. Section 274 of the Atomic Energy Act permits delegation of certain source-materials authority to Agreement States; Utah is the Agreement State where Energy Fuels' Phase 2 amendment is in process, while Ur-Energy's filings describe its Wyoming ISR operations as directly NRC-licensed.

Connection types

1. Reactor operating license holders

Dominion Energy and NextEra Energy are the two portfolio holdings operating commercial nuclear reactors. Dominion's nuclear fleet appears in the FY2025 10-K through the Contracted Energy segment including Millstone (2,013 MW, Connecticut) (atom 0001193125-26-063120, reported_results[18]); the merger filings group additional Virginia Power reactor assets under 'Dominion's nuclear fleet' as the basis for NRC consent under 10 CFR 50.80 (atom 0001104659-26-063001_ex99-1, what_happened). NextEra's 10-K discloses approximately 37,505 MW of NEER net generating capacity that includes its operating reactor fleet; the Duane Arnold restart application sits separately in Category 2.

2. Fuel cycle / enrichment facility licensees and reactor license reinstatement

Centrus Energy is identified in its FY2025 10-K as 'the only US-owned, NRC-licensed domestic uranium enrichment operator' (atom 0001628280-26-007117, background). Centrus operates a 16-centrifuge HALEU demonstration cascade at Piketon, Ohio under the existing license; the multi-billion-dollar expansion targeting at least 12 metric tons per year of HALEU production capacity is supported by a $2.4 billion contingent commercial LEU backlog (atom 0001628280-26-007117, reported_results[21], forward_guidance[2]). The Q1 2026 10-Q's not-addressed section flags 'regulatory approvals required for Piketon construction commencement (NRC, DOE, state permitting)' as undisclosed (atom 0001628280-26-030891). NextEra disclosed in December 2025 that NEER submitted an NRC application to reinstate the operating license for the Duane Arnold facility in Iowa, targeting 2029 commercial operation under a 25-year PPA; the 10-K flags impairment of capitalized amounts if NRC approval is not obtained (atom 0000753308-26-000015, reported_results[22], risk_factor_deltas[4]).

3. Source materials licensees — in-situ recovery

Ur-Energy operates two Wyoming ISR projects under NRC licenses per its FY2025 10-K: Lost Creek (Sweetwater County), NRC-licensed for up to 1.2M lbs U3O8/year wellfield with 2.2M lbs/year processing capacity, and Shirley Basin (Carbon County), 1.0M lbs/year wellfield (atom 0001104659-26-025923, background). Combined licensed capacity is 4.2 million lbs U3O8 per year (atom 0001104659-26-058180_ex99-1, quantified_terms[13]). Shirley Basin commenced initial extraction in April 2026; first resin shipments to Lost Creek targeted summer 2026 are 'subject to final regulatory approval from the NRC for resin transport' (atom 0001104659-26-058180_ex99-1, quantified_terms[12]). The FY2025 10-K flags Executive Order 14300 (May 2025) as mandating a wholesale revision of NRC regulations including potential reconsideration of the linear no-threshold model and ALARA standard (atom 0001104659-26-025923, risk_factor_deltas[1]).

4. Source materials — Agreement State delegation (Utah)

Energy Fuels operates the White Mesa Mill near Blanding, Utah, described in the FY2025 10-K as 'the only licensed and operating conventional uranium mill in the United States and the only U.S. uranium mill capable of producing separated rare earth element (REE) oxides' (atom 0001385849-26-000009, background). The licensing path appears through Utah's Division of Waste Management and Radiation Control (DWMRC) rather than direct NRC reference: the Q1 2026 10-Q states the Phase 2 REE Circuit license amendment was filed with DWMRC in November 2025 with approval expected mid-2027 (atom 0001385849-26-000021, reported_results[24]). Utah is an Agreement State under Section 274; the state holds primary licensing authority for source materials, with NRC retaining backstop oversight. The atoms do not state an NRC source-materials license number for White Mesa, so the connection is delegated-authority rather than direct NRC.

5. Merger / license transfer approval gate

The Dominion-NextEra merger announced May 15, 2026 requires seven regulatory approvals: HSR Act, FERC, NRC, FCC, Virginia SCC, North Carolina Utilities Commission, and South Carolina PSC (atom 0001193125-26-227930_ex2-1, quantified_terms[4]). NRC approval is required because 10 CFR 50.80 governs license transfers — when the licensee of a Part 50 reactor undergoes a change of control, the operating license cannot be assigned without NRC consent. The Termination Date is November 15, 2027, extendable to August 15, 2028 if regulatory conditions are not satisfied (atom 0001193125-26-227930_ex2-1, quantified_terms[3]). The three-tier termination-fee structure prices regulatory risk asymmetrically: NextEra pays Dominion $4.83B if approvals are not obtained, 2.16x Dominion's $2.24B fee for an accepted superior proposal (atom 0001193125-26-227930_ex2-1, quantified_terms[6][7][8]). The Burdensome Condition walkaway right permits either party to decline closing if regulatory undertakings would have a 'Material Adverse Effect' (atom 0001193125-26-227930_ex2-1, quantified_terms[14]).

6. Policy adjacency — NORM and future-licensing contingent

Rare Earths Americas holds no NRC license today. The IPO prospectus discloses that Shiloh's monazite-bearing sands contain naturally occurring radioactive materials — thorium and uranium — as an operational and regulatory risk (atom 0001193125-26-209799, risk_factor_deltas). The context section notes that thorium and uranium in monazite require compliance with NRC or Agreement State radiation protection standards in addition to standard mine permitting. No license application has been filed and no resource estimate has been established at Shiloh; $20.0M of IPO net proceeds was allocated to advance toward an initial S-K 1300 mineral resource estimate (atom 0001193125-26-209799, reported_results[10][19]). REA's NRC connection is contingent on Shiloh advancing through development.

Asymmetric geometry

Three concentration risks run through this single regulator.

First, the Dominion-NextEra merger's NRC license-transfer approval is a transaction-closing gate that links two anchor-level utility positions through one regulator's decision. The $4.83B Regulatory Termination Fee NextEra owes if NRC or any of the six other required approvals blocks closing is the largest single-regulator-conditioned cash exposure in the merger documents. Multi-state utility mergers of comparable scale have historically required 18-27 months when contested proceedings occur, which is the calibration window the November 15, 2027 Termination Date reflects.

Second, Centrus Energy is the holding most structurally dependent on a single regulator. As the only US-owned NRC-licensed enrichment operator, LEU's $2.4B contingent commercial backlog and the Piketon expansion targeting 12 metric tons/year of HALEU capacity sit on top of NRC licensing that the Q1 2026 10-Q identifies as not-yet-disclosed for the expansion. The $700M convertible note at 0.75% coupon and FY2026 capital deployment guidance of $350M-$500M are being deployed into a buildout whose regulatory cadence is set by NRC review timelines for the amendments the expansion will require.

Third, Agreement State delegation produces a regulatory-authority asymmetry across UUUU and URG. URG's filings describe Lost Creek and Shirley Basin as directly NRC-licensed and require NRC approval for Shirley Basin resin transport. UUUU's White Mesa Mill licensing flows through Utah DWMRC under Section 274 delegation, with the Phase 2 amendment filed at the state level and NRC operating as backstop. Agreement State authority can be faster and more locally-aligned, but it can also be more politically variable than direct NRC authority — and Executive Order 14300's mandated revision of NRC regulations (cited in URG's 10-K) may reset both frameworks. LEU is single-regulator-dependent; D and NEE are jointly dependent through the merger gate; UUUU is single-facility-dependent with Agreement State buffer; URG is multi-site direct-NRC; REA is contingent on Shiloh advancing.

Source atoms referenced

• D: 0001193125-26-063120 (10-K, 2026-02-23) — Millstone 2,013 MW Contracted Energy segment; 0001193125-26-227930_ex2-1 (8-K, 2026-05-18) — seven required approvals, Termination Date, termination-fee structure, Burdensome Condition.
• NEE: 0000753308-26-000015 (10-K, 2026-02-13) — Duane Arnold NRC application December 2025, 2029 COD, 25-year PPA, impairment risk if approvals not obtained; 0001104659-26-063001_ex99-1 (8-K, 2026-05-18) — merger NRC approval requirement under 10 CFR 50.80.
• LEU: 0001628280-26-007117 (10-K, 2026-02-11) — only US-owned NRC-licensed enrichment operator, Piketon expansion, $2.4B contingent backlog; 0001628280-26-030891 (10-Q, 2026-05-06) — Piketon construction NRC/DOE/state approvals identified as not-yet-disclosed.
• URG: 0001104659-26-025923 (10-K, 2026-03-10) — Lost Creek NRC license 1.2M lbs/yr wellfield + 2.2M lbs/yr processing; Shirley Basin 1.0M lbs/yr; EO 14300 NRC rulemaking; 0001104659-26-058180_ex99-1 (8-K, 2026-05-11) — 4.2M lbs/yr combined licensed capacity, Shirley Basin resin transport pending final NRC approval.
• UUUU: 0001385849-26-000009 (10-K, 2026-02-26) — White Mesa Mill the only licensed conventional uranium mill in the US; 0001385849-26-000021 (10-Q, 2026-05-06) — Phase 2 REE Circuit license amendment filed with Utah DWMRC November 2025, approval expected mid-2027.
• REA: 0001193125-26-209799 (424B4, 2026-05-07) — Shiloh NORM (thorium/uranium in monazite) flagged as operational and regulatory risk; NRC or Agreement State radiation protection standards referenced as future compliance requirement.