---
title: "Stack Characterisation & Evaluation & DOP Filter Testing Lots 1 & 2 2027 onwards"
ocid: "ocds-h6vhtk-069b07"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-069b07"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-069b07.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-069b07.json"
source: "Find A Tender Service"
current_stage: "Planning"
buyer: "NUCLEAR RESTORATION SERVICES LIMITED"
published: "2026-07-21"
---

# Stack Characterisation & Evaluation & DOP Filter Testing Lots 1 & 2 2027 onwards

Buyer: NUCLEAR RESTORATION SERVICES LIMITED  
Current stage: Planning  
OCID: ocds-h6vhtk-069b07

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[Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-069b07.json)

## Summary

The procurement process initiated by Nuclear Restoration Services Limited involves the upcoming contract titled "Stack Characterisation & Evaluation & DOP Filter Testing Lots 1 & 2 2027 onwards." This project, planned under the engineering services category, will cover locations including NRS Sites, NRS Dounreay, and AGRs throughout the United Kingdom. The current procurement stage is planning, with key milestones including a tender period ending on 18th September 2026 and an award period concluding by 25th January 2027. The procurement method being utilised is an open procedure, enabling broad participation. Interested parties should note the potential for a three-year contract renewal on top of the initial five-year period starting from 1st April 2027 and ending on 31st March 2032.

This tender offers significant opportunities for businesses specialising in engineering and technical services, particularly those with experience in environmental and nuclear restoration sectors. The potential contract value of up to £3.36 million gross presents a substantial opportunity for business growth. Small and medium-sized enterprises (SMEs) are well-positioned to compete due to suitability considerations for Lot 1. Companies with technological expertise in characterisation, evaluation, and filter testing, especially those adept in complex scientific applications and operations at multiple sites, will find this tender aligns well with their capabilities. Engaging in this procurement process can enhance a business's portfolio and provide exposure to governmental restoration projects.

## Notice

Stack Characterisation & Evaluation & DOP Filter Testing Lots 1 & 2 2027 onwards - covers NRS Sites, NRS Dounreay and AGRs transferring to NRS.

### Lot Information

Lot 1

Harwell/Winfrith

Renewal: An optional 3 year extension is allowed for withint the contract

Lot 2

All other NRS sites including AGRs

Renewal: An optional 3 year extension is allowed for withint the contract

### Planning Information

To obtain further information, including all documentation, please follow these steps:
1. Log in to the supplier portal at: https://atamis-2464.my.site.com/s/Welcome.
2. Locate the opportunity using 'Find Opportunities' or use ref C31320

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/068493-2026 |
| Notice type | UK3 - Planned Procurement Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Open |
| Procurement method details | Open procedure |
| Tender suitability | SME |
| Awardee scale | Not specified |
| All stages | Planning |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 21 Jul 2026 |
| Submission deadline | 18 Sep 2026 |
| Future notice date | 28 Jul 2026 |
| Award date | Not specified |
| Contract period | 31 Mar 2027 - 31 Mar 2032 |
| Recurrence | 2033-04-01 |

## Values

| Field | Value |
| --- | --- |
| Tender value | £2,800,000 |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Planned |
| Lots status | Planned |
| Awards status | Not specified |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | NUCLEAR RESTORATION SERVICES LIMITED |
| Locality | WARRINGTON |
| Post town | Warrington |
| Postcode | WA3 6GR |
| Country | England |
| ITL 1 | TLD North West (England) |
| ITL 2 | TLD6 Cheshire |
| ITL 3 | TLD61 Warrington |
| Local authority | Warrington |
| Electoral ward | Birchwood |
| Westminster constituency | Warrington North |
| Delivery location | Not specified |

## CPV Codes

### Divisions

- 71 - Architectural, construction, engineering and inspection services

### Codes

- 71300000 - Engineering services

## Release History

- 21 Jul 2026 at 07:57 - Planning - UK3 - Planned Procurement Notice - https://www.find-tender.service.gov.uk/Notice/068493-2026
- 21 May 2026 at 07:31 - Planning - UK1 - Pipeline Notice - https://www.find-tender.service.gov.uk/Notice/046734-2026
- 18 May 2026 at 13:10 - Planning - UK2 - Preliminary Market Engagement Notice - https://www.find-tender.service.gov.uk/Notice/045372-2026

## Documents

- https://www.find-tender.service.gov.uk/Notice/068493-2026
  21st July 2026 - Planned procurement notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/046734-2026
  21st May 2026 - Pipeline notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/045372-2026
  18th May 2026 - Preliminary market engagement notice on Find a Tender

## Notice URLs

- https://atamis-2464.my.site.com/s/Welcome
- https://www.gov.uk/government/organisations/nuclear-restoration-services
- https://www.legislation.gov.uk/ukpga/2023/54/contents

## 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-069b07. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-069b07.json.