Tender

715724483_V2 The Provision of Nuclear Site Safety Justification (NSSJ) Services at HMNB Devonport

SUBMARINE DELIVERY AGENCY

This public procurement record has 3 releases in its history.

TenderUpdate

15 Apr 2026 at 08:35

Tender

13 Apr 2026 at 10:12

Planning

10 Feb 2026 at 13:19

Summary of the contracting process

The Submarine Delivery Agency is spearheading an important procurement initiative at HM Naval Base Devonport, Plymouth, focusing on Nuclear Site Safety Justification (NSSJ) Services. This process, currently in the tender stage as of 15 April 2026, falls within the defence and security category and involves significant project management and safety consultancy services. Utilising a competitive flexible procedure, the process commenced with a Procurement Specific Questionnaire issued on 9 April 2026, with responses due by 5 May 2026, and crucial tender submission deadlines set for 16 July 2026. The contract is valued at a gross amount of £12.7 million and will span from 1 November 2026 to 31 October 2029, with potential extensions up to 2031, focusing on maintaining and enhancing nuclear safety documentation compliance in line with Ministry of Defence and Defence Nuclear Safety Regulator standards.

Businesses that possess specialised expertise in nuclear safety management, project management, and technical support will find promising growth opportunities through this tender. The integration of flexible support requirements and high compliance standards presents an excellent platform for firms with experience in civil nuclear practices. SMEs with the capability of providing robust engineering assessments, knowledge transfer initiatives, and continuous improvement support are ideal contenders, given the focus on enhancing the Intelligent Customer capability within the naval base. The open procurement method encourages wider competition, allowing new entrants to showcase innovative approaches and establish strategic partnerships within the defence sector.

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Notice Title

715724483_V2 The Provision of Nuclear Site Safety Justification (NSSJ) Services at HMNB Devonport

Notice Description

Description of the Procurement The fundamental aim of the Naval Site Safety Justification (NSSJ) contract is to procure the provision of an integrated Project Management Service (PMS) to support the continued authorisation and safe operation of HM Naval Base (HMNB) Devonport. The contract provides specialist capability to deliver project management, nuclear safety advice, safety case production and maintenance, and Periodic Review of Safety (PRS) activities, under a pro rata model. These services ensure that the Naval Base Commander's Site Safety Justification documentation remains current, robust, and fully compliant with: * MoD Authorisation Conditions * MoD Naval Nuclear Safety Principles (NNSP) * Applicable Defence Nuclear Safety Regulator (DNSR) standards In addition to technical delivery, the contract supports knowledge transfer and information sharing to strengthen the Authority's Intelligent Customer (IC) capability. Scope of Services The services to be provided under this contract include, but are not limited to: 1. Nuclear Safety Case Management and Support * Provision of specialist nuclear safety advice reflecting modern civil nuclear practice. * Management, review, and maintenance of the full suite of HMNB Devonport nuclear safety cases and supporting documentation. * Support to the Naval Base Design Authority in ensuring safety justification documentation remains authorised and compliant throughout its lifecycle. 2. Nuclear Authorised Documentation Review Programme (NADRP) Support * Support for documentation production, review, update, and tracking activities using the Nuclear Authorised Documentation Review Programme (NADRP). * Delivery of tasks assigned via NADRP in accordance with programme priorities and Design Authority requirements. * Flexible and reactive support for new documentation tasks driven by the submarine operational programme, including delivery to demanding timelines. 3. Periodic Review of Safety (PRS) Support * Full-time technical support to the PRS Lead, managed through the Design Authority PRS Assistant Head role. * Subject matter review and assessment activity contributing to the successful delivery of the Naval Base PRS programme. 4. Intelligent Customer (IC) Support * Independent IC support to the Design Authority Safety Justification Delivery Manager (SJDM). * Provision of an experienced safety engineer to assess NSSJ documentation during production, review, and approval stages. * Assurance that IC activities remain independent from document authorship and production. 5. Continuous Improvement and Knowledge Transfer * Support to the Naval Base in fostering a culture of continuous improvement in nuclear safety management. * Knowledge sharing and mentoring to enhance internal capability and resilience within the Authority. Delivery Context and Experience Requirements The service provider is required to bring a high level of knowledge and experience in nuclear safety case management, with a strong understanding of the MOD environment. This includes experience of operating within the challenges of balancing a demanding military operational programme with the stringent requirements of nuclear safety regulation. The provider is expected to work within established HMNB Devonport nuclear safety management arrangements while applying relevant external experience and best practice to enhance safety performance.

Lot Information

Lot 1

Options: option to extend by 2 x 1 year periods

Renewal: 2 x 1 year periods

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-064c87
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/034011-2026
Current Stage
Tender
All Stages
Planning, Tender

Procurement Classification

Notice Type
UK4 - Tender Notice
Procurement Type
Standard
Procurement Category
Services
Procurement Method
Open
Procurement Method Details
Competitive flexible procedure
Tender Suitability
SME
Awardee Scale
Not specified

Common Procurement Vocabulary (CPV)

CPV Divisions

71 - Architectural, construction, engineering and inspection services

72 - IT services: consulting, software development, Internet and support

79 - Business services: law, marketing, consulting, recruitment, printing and security

98 - Other community, social and personal services


CPV Codes

71356300 - Technical support services

72224000 - Project management consultancy services

79417000 - Safety consultancy services

98113100 - Nuclear safety services

Notice Value(s)

Tender Value
£10,160,000 £10M-£100M
Lots Value
£10,160,000 £10M-£100M
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
15 Apr 20261 weeks ago
Submission Deadline
16 Jul 20263 months to go
Future Notice Date
6 Mar 2026Expired
Award Date
Not specified
Contract Period
1 Nov 2026 - 31 Oct 2029 3-4 years
Recurrence
Not specified

Notice Status

Tender Status
Active
Lots Status
Active
Awards Status
Not Specified
Contracts Status
Not Specified

Contracting Authority (Buyer)

Main Buyer
SUBMARINE DELIVERY AGENCY
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
PLYMOUTH
Postcode
PL2 2BG
Post Town
Plymouth
Country
England

Major Region (ITL 1)
TLK South West (England)
Basic Region (ITL 2)
TLK4 Devon
Small Region (ITL 3)
TLK41 Plymouth
Delivery Location
Not specified

Local Authority
Plymouth
Electoral Ward
Devonport
Westminster Constituency
Plymouth Sutton and Devonport

Open Contracting Data Standard (OCDS)

View full OCDS Record for this contracting process

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The Open Contracting Data Standard (OCDS) is a framework designed to increase transparency and access to public procurement data in the public sector. It is widely used by governments and organisations worldwide to report on procurement processes and contracts.

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