dockets: NRC-2021-0174

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id agency_id title docket_type last_modified object_id rin dkabstract category subtype keywords program short_title effective_date organization attrs_raw attr_source
NRC-2021-0174 NRC Reactor Pressure Vessel Integrity and Embrittlement Rulemaking 2026-02-11T18:29:32Z 0b00006484d638e4 3150-AL65 This rulemaking would modify the embrittlement and surveillance requirements in the NRC regulations to support the continued operation of high fluence plants in long-term operation. These changes are necessary because limited surveillance testing at high fluence and inaccurate embrittlement prediction requirements challenge the NRC’s confidence in the integrity of the reactor pressure vessel as the vessel becomes more embrittled in long-term operation. This rulemaking is expected to supplement the surveillance requirements in Appendix H to 10 CFR Part 50 and modify the embrittlement trend curve requirements in 10 CFR 50.61 and associated guidance for high fluence plants in long-term operation.     ["Embrittlement", "Vessel Integrity"]         {"displayProperties": [], "keywords": ["Embrittlement", "Vessel Integrity"], "modifyDate": "2026-02-11T18:29:32Z", "dkAbstract": "This rulemaking would modify the embrittlement and surveillance requirements in the NRC regulations to support the continued operation of high fluence plants in long-term operation. These changes are necessary because limited surveillance testing at high fluence and inaccurate embrittlement prediction requirements challenge the NRC\u2019s confidence in the integrity of the reactor pressure vessel as the vessel becomes more embrittled in long-term operation. This rulemaking is expected to supplement the surveillance requirements in Appendix H to 10 CFR Part 50 and modify the embrittlement trend curve requirements in 10 CFR 50.61 and associated guidance for high fluence plants in long-term operation.", "agencyId": "NRC", "program": null, "shortTitle": null, "subType2": null, "title": "Reactor Pressure Vessel Integrity and Embrittlement", "generic": null, "field1": null, "docketType": "Rulemaking", "petitionNbr": null, "rin": "3150-AL65", "organization": null, "legacyId": null, "subType": null, "category": null, "field2": null, "effectiveDate": null, "objectId": "0b00006484d638e4"} single_get

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