--- title: "Post-Closure Safety Case Framework" ocid: "ocds-h6vhtk-041d16" canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-041d16" markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-041d16.md" json_url: "https://d3tenders.com/contract/ocds-h6vhtk-041d16.json" source: "Find A Tender Service" current_stage: "Award" buyer: "NUCLEAR WASTE SERVICES LIMITED" published: "2025-10-21" --- # Post-Closure Safety Case Framework Buyer: NUCLEAR WASTE SERVICES LIMITED Current stage: Award OCID: ocds-h6vhtk-041d16 [View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-h6vhtk-041d16) [Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-041d16.json) ## Summary The procurement process for the "Post-Closure Safety Case Framework" contract was conducted by Nuclear Waste Services Limited, located in Calderbridge, Seascale, United Kingdom. This process is classified under the services category with a focus on nuclear safety services, specifically involving post-closure safety cases for radioactive waste. The procurement utilized a selective method through a restricted procedure, inviting suitable candidates to participate. The overall value of the awarded contract reached £6,000,000.00, and the procurement stage has been completed with contracts signed on 21 October 2025. The framework agreement was designed to extend over four years, providing opportunities for businesses to demonstrate their capabilities in safety case production, methodology, modelling, and knowledge management, with the bidding period having concluded on 21 March 2025. This tender provides substantial business growth opportunities, particularly for companies specialising in nuclear safety, research consultancy, and environmental safety services. The framework allows for subcontracting, opening opportunities for smaller and medium-sized enterprises to participate, as demonstrated by the range of suppliers involved, including INTERA, MCM Environmental Services Ltd, and Eden Nuclear, among others. This contract suits firms with expertise in managing radioactive waste challenges and those equipped to handle complex safety modelling and case management tasks. The tender process emphasized quality and price in its award criteria, underscoring the importance of delivering high-calibre technical solutions while maintaining cost efficiency. This presents a significant business avenue for innovation and expansion within the nuclear safety sector. ## Notice Post-closure safety cases demonstrate the safety of radioactive waste & geological disposal over long timescales & large uncertainties. This framework requires experts in PCSC production, methodology, modelling & knowledge management. ### Lot Information Lot 1 Post-closure safety cases demonstrate the safety of radioactive waste & geological disposal over long timescales & large uncertainties. This framework requires experts in PCSC production, methodology, modelling & knowledge management. ## Key Details | Field | Value | | --- | --- | | Publication source | Find A Tender Service | | Latest notice | https://www.find-tender.service.gov.uk/Notice/067268-2025 | | Notice type | Planning Notice | | Procurement type | Framework | | Procurement category | Services | | Procurement method | Selective | | Procurement method details | Restricted procedure | | Tender suitability | Not specified | | Awardee scale | Large, SME | | All stages | Planning, Tender, Award | ## Dates | Field | Value | | --- | --- | | Publication date | 21 Oct 2025 | | Submission deadline | 21 Mar 2025 | | Future notice date | 27 Nov 2023 | | Award date | 20 Oct 2025 | | Contract period | Not specified | | Recurrence | Not specified | ## Values | Field | Value | | --- | --- | | Tender value | £6,000,000 | | Lots value | £6,000,000 | | Awards value | Not specified | | Contracts value | Not specified | ## Status | Field | Value | | --- | --- | | Tender status | Complete | | Lots status | Cancelled | | Awards status | Active | | Contracts status | Active | ## Buyer | Field | Value | | --- | --- | | Main buyer | NUCLEAR WASTE SERVICES LIMITED | | Additional buyers | RADIOACTIVE WASTE MANAGEMENT LIMITED TRADING AS NUCLEAR WASTE SERVICES | | Locality | DIDCOT | | Post town | Oxford | | Postcode | OX11 0GD | | Country | England | | ITL 1 | TLD North West (England) | | ITL 2 | TLD1 Cumbria | | ITL 3 | TLD13 Cumberland | | Local authority | Cumberland | | Electoral ward | Gosforth | | Westminster constituency | Whitehaven and Workington | | Delivery location | Not specified | ## Supplier | Field | Value | | --- | --- | | Number of suppliers | 5 | | Supplier names | AMENTUM CLEAN ENERGY; EDEN NUCLEAR; GALSON SCIENCES; INTERA; MCM ENVIRONMENTAL SERVICES | ## CPV Codes ### Divisions - 73 - Research and development services and related consultancy services - 79 - Business services: law, marketing, consulting, recruitment, printing and security - 90 - Sewage, refuse, cleaning and environmental services - 98 - Other community, social and personal services ### Codes - 73210000 - Research consultancy services - 79417000 - Safety consultancy services - 90721000 - Environmental safety services - 98113100 - Nuclear safety services ## Release History - 21 Oct 2025 at 16:38 - Award - Award Notice - https://www.find-tender.service.gov.uk/Notice/067268-2025 - 26 Feb 2025 at 12:27 - TenderUpdate - Tender Notice - https://www.find-tender.service.gov.uk/Notice/007277-2025 - 26 Feb 2025 at 08:49 - TenderUpdate - Tender Notice - https://www.find-tender.service.gov.uk/Notice/007219-2025 - 17 Feb 2025 at 14:27 - Tender - Tender Notice - https://www.find-tender.service.gov.uk/Notice/005387-2025 - 27 Nov 2023 at 16:32 - Planning - Planning Notice - https://www.find-tender.service.gov.uk/Notice/034975-2023 ## Notice URLs - http://www.galson-sciences.co.uk - http://www.intera.com - http://www.jacobs.com - http://www.mcmenvironmental.co.uk - https://atamis-2464.my.site.com/s/Welcome - https://one-nda.force.com/s/Welcome - https://www.find-court-tribunal.service.gov.uk/courts/royal-courts-of-justice - https://www.gov.uk/government/organisations/nuclear-waste-services - https://www.gov.uk/government/organisations/nuclear-waste-services/about - https://www.justice.gov.uk ## Provenance This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-041d16. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-041d16.json.