Regulatory Pipeline
Track every SMR and advanced reactor through NRC, CNSC, UK GDA, and international regulatory processes. Design certifications, construction permits, and licensing milestones.
Approved Under Review Submitted Pre-Application
| Reactor | Developer | Country | Regulator | Pathway | Current Stage | Status |
|---|---|---|---|---|---|---|
| VOYGR US600 (50 MWe) | NuScale Power | USA | NRC | Part 52 | Design Certification | APPROVED |
| VOYGR US460 (77 MWe) | NuScale Power | USA | NRC | Part 52 | Standard Design Approval | APPROVED |
| Hermes | Kairos Power | USA | NRC | Part 50 | Under Construction (CP deadline extended 28 months, Apr 2026) | UNDER-CONSTRUCTION |
| Natrium | TerraPower | USA | NRC | Part 50 | Construction Permit Issued | APPROVED |
| SMR-300 | Holtec International | USA | NRC | Part 50 | Construction Permit Application Under Review | UNDER REVIEW |
| Xe-100 (Dow Seadrift) | X-energy | USA | NRC | Part 50 | Construction Permit Application Under Review | UNDER REVIEW |
| Aurora Powerhouse | Oklo Inc. | USA | NRC | Part 50/52 | Pre-Application / COLA Phase 1 Planned 2026 | PRE-APPLICATION |
| AP300 | Westinghouse Electric | USA | NRC | Part 52 | Pre-Application Engagement | PRE-APPLICATION |
| eVinci | Westinghouse Electric | USA | NRC | Part 50 | Pre-Licensing | PRE-APPLICATION |
| Westinghouse LFR | Westinghouse Electric | USA | NRC | Pre-Application | PRE-APPLICATION | |
| BWRX-300 (Darlington) | GE Hitachi / GE Vernova | Canada | CNSC | CNSC Licensing | License to Construct | APPROVED |
| ARC-100 | ARC Clean Technology | Canada | CNSC | Vendor Design Review | Phase 2 VDR Completed — No Barriers | APPROVED |
| IMSR | Terrestrial Energy | Canada | CNSC | Vendor Design Review | Phase 2 VDR Completed — No Barriers | APPROVED |
| Rolls-Royce SMR | Rolls-Royce SMR Ltd | UK | ONR | GDA | GDA Step 3 (completion expected Aug 2026) | UNDER REVIEW |
| SMR-300 (UK) | Holtec International | UK | ONR | GDA | GDA Step 2 | UNDER REVIEW |
| LFR-AS-200 | Newcleo | UK | ONR | GDA | GDA Accepted (UK programme suspended) | UNDER REVIEW |
| SMART100 | KAERI | South Korea | NSSC | Korean SDA | Standard Design Approval Received | APPROVED |
| i-SMR | KHNP | South Korea | NSSC | Korean SDA | Standard Design In Progress (SDA target 2028) | UNDER REVIEW |
| Linglong One / ACP100 | CNNC | China | NNSA (China) | Chinese Nuclear Licensing | Construction Complete / Commissioning | APPROVED |
| HTR-PM | CNNC / Tsinghua University | China | NNSA (China) | Chinese Nuclear Licensing | Operating License | APPROVED |
| TRISO-X TX-1 Fuel Facility | TRISO-X (X-energy) | USA | NRC | Part 70 | SNM License Approved | APPROVED |
| Aalo-X (XMR) | Aalo Atomics | USA | DOE | Reactor Pilot Program | Construction Authorized | APPROVED |
| Ward 250 | Valar Atomics | USA | DOE | Reactor Pilot Program | Construction Authorized | APPROVED |
| MSR-1 | Natura Resources | USA | NRC | Part 50 | Construction Permit Received — First MSR Licensed by NRC | APPROVED |
| Antares R1 | Antares Nuclear | USA | DOE | Reactor Pilot Program | Construction Authorized | APPROVED |
| Gravity Reactor | Deep Fission | USA | DOE | Reactor Pilot Program | Construction Authorized | APPROVED |
| Stellarium | Stellaria | France | ASN (France) | French Nuclear Licensing | Prototype Application Filed (Jan 2026) | UNDER REVIEW |
| Jimmy HTR | Jimmy Energy | France | ASN (France) | French Nuclear Licensing | Construction Authorization Request Filed (Apr 2024) | UNDER REVIEW |