---
title: "Post-Closure Safety Case Framework"
ocid: "ocds-b5fd17-aef7c22a-4b38-47f0-b78e-ee651a6bd45c"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-aef7c22a-4b38-47f0-b78e-ee651a6bd45c"
markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-aef7c22a-4b38-47f0-b78e-ee651a6bd45c.md"
json_url: "https://d3tenders.com/contract/ocds-b5fd17-aef7c22a-4b38-47f0-b78e-ee651a6bd45c.json"
source: "Contracts Finder"
current_stage: "Award"
buyer: "NUCLEAR WASTE SERVICES"
published: "2025-10-21"
---

# Post-Closure Safety Case Framework

Buyer: NUCLEAR WASTE SERVICES  
Current stage: Award  
OCID: ocds-b5fd17-aef7c22a-4b38-47f0-b78e-ee651a6bd45c

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## Summary

The procurement process titled "Post-Closure Safety Case Framework" was managed by Nuclear Waste Services, headquartered in Calderbridge, Cumbria, UK. This framework primarily deals with safety consultancy services related to radioactive waste and geological disposal, specifically focusing on long-term safety cases. Key industry categories involved include safety, environmental, and nuclear consultancy services. The contract was awarded on 21st October 2025, with the contract period set to commence on 1st November 2025 and conclude by 31st October 2029. The procurement followed a selective method under a restricted procedure above the threshold, indicating a carefully controlled bidding process. Locations impacted by this procurement include the UK, Channel Islands, Isle of Man, Europe, British Overseas Territories, and potentially other global regions.

This tender presents significant opportunities for businesses specialising in safety consultancy, particularly those with expertise in nuclear and environmental safety. It is particularly suitable for small and medium-sized enterprises (SMEs), as indicated by its suitability criteria, and can involve advanced methodologies such as PCSC production and knowledge management for radioactive waste. Businesses excelling in these areas, along with established research consultancy services, stand to benefit from participation or collaboration. Suppliers involved include Galson Sciences Limited, INTERA, AMENTUM CLEAN ENERGY LIMITED, Eden Nuclear, and MCM Environmental Services, highlighting a mix of large and SME suppliers, fostering diverse business engagements and potentially fostering growth and development within this specialised industry segment.

## 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.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Contracts Finder |
| Latest notice | https://www.contractsfinder.service.gov.uk/Notice/d2b5f4fb-92c2-42ce-b89e-eb193cb5f21b |
| Notice type | Award Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Selective |
| Procurement method details | Restricted procedure (above threshold) |
| Tender suitability | SME |
| Awardee scale | Large, SME |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 21 Oct 2025 |
| Submission deadline | 21 Mar 2025 |
| Future notice date | Not specified |
| Award date | 20 Oct 2025 |
| Contract period | 1 Nov 2025 - 31 Oct 2029 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Not specified |
| Awards status | Active |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | NUCLEAR WASTE SERVICES |
| Locality | CALDERBRIDGE, CUMBRIA |
| Post town | Carlisle |
| Postcode | CA20 1DB |
| 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 15:45 - Award - Award Notice - https://www.contractsfinder.service.gov.uk/Notice/d2b5f4fb-92c2-42ce-b89e-eb193cb5f21b

## Documents

- https://www.contractsfinder.service.gov.uk/Notice/d2b5f4fb-92c2-42ce-b89e-eb193cb5f21b
  21st October 2025 - Awarded contract notice on Contracts Finder

## 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-b5fd17-aef7c22a-4b38-47f0-b78e-ee651a6bd45c. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-b5fd17-aef7c22a-4b38-47f0-b78e-ee651a6bd45c.json.