This public procurement record has 1 release in its history.

Tender

23 Jun 2026 at 00:00

Summary of the contracting process

ScotRail Trains Limited, headquartered in Glasgow, is currently in the tender stage for the overhaul of air reservoirs, an essential component in railway safety systems. This procurement is structured into two Lots: Lot 1 includes services for Class 153, 156, and 158 trains, while Lot 2 covers HST Class 43 Power Car and Mark III Coach. The contract follows a negotiated procedure with prior call for competition and concludes on 24th July 2026, with a maximum of two Lots per supplier. The procurement process demands adherence to strict rail safety standards and includes an option to extend the contract by an additional 12 months. Interested suppliers should submit their applications electronically via ScotRail's e-sourcing platform, with a critical deadline for submissions set for 12:00 PM on the mentioned date.

This tender offers significant opportunities for businesses involved in railway maintenance and engineering services, especially those experienced in compliance with safety-critical standards. Companies capable of providing a robust identification and labelling system for asset management will have a competitive edge. Given the high technical nature of the work and the planned extension options, firms with a strong track record in operational delivery within tightly regulated rail service frameworks will find this an excellent opportunity to deepen their engagement in the railway industry and potentially secure long-term contracts.

How relevant is this notice?

Notice Title

PQQ for Air Reservoir overhaul

Notice Description

ScotRail Trains Limited (hereinafter referenced as ScotRail) are looking to tender for the provision of an Air Reservoir (various) overhaul service in accordance with rail safety critical and rail standards, and using Scotrail-provided materials. Noting the Out of Service (OSD) for HSTs, the business has revised the procurement strategy and the tender will now be separated into Lots to account for the differing contract end date required for the HSTs. - Lot 1 - for Class 153, 156 & 158 trains; and - Lot 2 - for HST Class 43 Power Car & Mark III Coach As part of the ITN process Suppliers will be able to bid for one or more Lots. An air reservoir is defined as a vessel (other than a pipe coil or ancillary fitting and part of the compressor) for containing compressed air. The group definition is based on the Reservoirs function, material and vehicle classification. ScotRail Trains Limited reserve the right to add or remove the numbers of overhauls per class of train, as the business requires.

Lot Information

Air Reservoir overhaul for Class 153, 156 & 158 trains

ScotRail Trains Limited (hereinafter referenced as ScotRail) are looking to tender for the provision of an Air Reservoir (various) overhaul service in accordance with rail safety critical and rail standards, and using Scotrail-provided materials. Noting the Out of Service (OSD) for HSTs, the business has revised the procurement strategy. The tender will now be separated into Lots to account for the differing contract end date required for the HSTs. Lot 1 - for Class 153, 156 & 158 trains; and As part of the ITN process Suppliers will be able to bid for one or more Lots. An air reservoir is defined as a vessel (other than a pipe coil or ancillary fitting and part of the compressor) for containing compressed air. The group definition is based on the Reservoirs function, material and vehicle classification. ScotRail Trains Limited reserve the right to add or remove the numbers of overhauls per class of train, as the business requires. The services must be in accordance with WOSS 310/8 Version 4: Repair Procedure - Dismantling, Cleaning, Examination and Repair, Reassembly and Pain ting, and Test Specification for train classes 153, 156, 158, & HSTs. As part of this service, SRTL requires the supplier to deliver a robust identification labelling system to asset manage each tank to identify the kit and record the overhaul completion date and associated data.. This is a pre-qualification activity in advance of a formal tender process. To participate, suppliers should access and complete the the pre Qualification Questionnaire published on our e-sourcing portal (wax Digital) at https://scotrail.wax-live.com/S2C/DisplayModules/TradeModules/Negotiations/Opportunities/ListEvents.aspxh

Renewal: Option to extend for a further 12 months

Air Reservoir overhaul for HST Class 43 Power Car & Mark III Coach

ScotRail Trains Limited (hereinafter referenced as ScotRail) are looking to tender for the provision of an Air Reservoir (various) overhaul service in accordance with rail safety critical and rail standards, and using Scotrail-provided materials. Noting the Out of Service (OSD) for HSTs, the business has revised the procurement strategy. The tender will now be separated into Lots to account for the differing contract end date required for the HSTs. Lot 2 - for HST Class 43 Power Car & Mark III Coach As part of the ITN process Suppliers will be able to bid for one or more Lots. An air reservoir is defined as a vessel (other than a pipe coil or ancillary fitting and part of the compressor) for containing compressed air. The group definition is based on the Reservoirs function, material and vehicle classification. ScotRail Trains Limited reserve the right to add or remove the numbers of overhauls per class of train, as the business requires. As part of this service, SRTL requires the supplier to deliver a robust identification labelling system to asset manage each tank to identify the kit and record the overhaul completion date and associated data.. This is a pre-qualification activity in advance of a formal tender process. To participate, suppliers should access and complete the the pre Qualification Questionnaire published on our e-sourcing portal (wax Digital) at https://scotrail.wax-live.com/S2C/DisplayModules/TradeModules/Negotiations/Opportunities/ListEvents.aspxh

Renewal: Possible extension of up to 12 months

Publication & Lifecycle

Open Contracting ID
ocds-r6ebe6-0000835148
Publication Source
Public Contracts Scotland
Latest Notice
https://www.publiccontractsscotland.gov.uk/search/show/search_view.aspx?ID=JUN558524
Current Stage
Tender
All Stages
Tender

Procurement Classification

Notice Type
OJEU - F5 - Contract Notice (Utilities)
Procurement Type
Standard
Procurement Category
Services
Procurement Method
Selective
Procurement Method Details
Negotiated procedure with prior call for competition
Tender Suitability
Not specified
Awardee Scale
Not specified

Common Procurement Vocabulary (CPV)

CPV Divisions

50 - Repair and maintenance services

71 - Architectural, construction, engineering and inspection services


CPV Codes

50220000 - Repair, maintenance and associated services related to railways and other equipment

50530000 - Repair and maintenance services of machinery

71630000 - Technical inspection and testing services

Notice Value(s)

Tender Value
Not specified
Lots Value
Not specified
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
23 Jun 20262 days ago
Submission Deadline
24 Jul 20264 weeks to go
Future Notice Date
Not specified
Award Date
Not specified
Contract Period
Not specified - Not specified
Recurrence
Not specified

Notice Status

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

Contracting Authority (Buyer)

Main Buyer
SCOTRAIL TRAINS LIMITED
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
GLASGOW
Postcode
G2 6HQ
Post Town
Glasgow
Country
Scotland

Major Region (ITL 1)
TLM Scotland
Basic Region (ITL 2)
TLM3 West Central Scotland
Small Region (ITL 3)
TLM32 Glasgow City
Delivery Location
TLM Scotland

Local Authority
Glasgow City
Electoral Ward
Anderston/City/Yorkhill
Westminster Constituency
Glasgow North

Further Information

Notice Documents

  • https://www.publiccontractsscotland.gov.uk/search/show/search_view.aspx?ID=JUN558524
    PQQ for Air Reservoir overhaul - ScotRail Trains Limited (hereinafter referenced as ScotRail) are looking to tender for the provision of an Air Reservoir (various) overhaul service in accordance with rail safety critical and rail standards, and using Scotrail-provided materials. Noting the Out of Service (OSD) for HSTs, the business has revised the procurement strategy and the tender will now be separated into Lots to account for the differing contract end date required for the HSTs. - Lot 1 - for Class 153, 156 & 158 trains; and - Lot 2 - for HST Class 43 Power Car & Mark III Coach As part of the ITN process Suppliers will be able to bid for one or more Lots. An air reservoir is defined as a vessel (other than a pipe coil or ancillary fitting and part of the compressor) for containing compressed air. The group definition is based on the Reservoirs function, material and vehicle classification. ScotRail Trains Limited reserve the right to add or remove the numbers of overhauls per class of train, as the business requires.

Open Contracting Data Standard (OCDS)

View full OCDS Record for this contracting process

JSON Markdown

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.

{
    "tag": [
        "compiled"
    ],
    "id": "ocds-r6ebe6-0000835148-2026-06-23T00:00:00Z",
    "date": "2026-06-23T00:00:00Z",
    "ocid": "ocds-r6ebe6-0000835148",
    "initiationType": "tender",
    "parties": [
        {
            "id": "org-1",
            "name": "ScotRail Trains Limited",
            "identifier": {
                "legalName": "ScotRail Trains Limited"
            },
            "address": {
                "streetAddress": "Atrium Court, 50 Waterloo Street",
                "locality": "Glasgow",
                "region": "UKM",
                "postalCode": "G2 6HQ"
            },
            "contactPoint": {
                "name": "Willie MacMillan",
                "email": "willie.macmillan@scotrail.co.uk",
                "telephone": "+44 3448110141",
                "url": "https://scotrail.wax-live.com/S2C/DisplayModules/TradeModules/Negotiations/Opportunities/ListEvents.aspx"
            },
            "roles": [
                "buyer",
                "centralPurchasingBody"
            ],
            "details": {
                "classifications": [
                    {
                        "id": "Railway services",
                        "scheme": "TED_CE_ACTIVITY"
                    }
                ],
                "url": "https://www.scotrail.co.uk/"
            }
        },
        {
            "id": "org-2",
            "name": "Glasgow Sheriff Court and Justice of the Peace",
            "identifier": {
                "legalName": "Glasgow Sheriff Court and Justice of the Peace"
            },
            "address": {
                "streetAddress": "Sheriff Clerk's Office, PO Box 23, 1 Carlton Place",
                "locality": "Glasgow",
                "postalCode": "G5 9DA"
            },
            "contactPoint": {
                "url": "http://"
            },
            "roles": [
                "reviewBody"
            ]
        }
    ],
    "buyer": {
        "name": "ScotRail Trains Limited",
        "id": "org-1"
    },
    "tender": {
        "id": "SR-255",
        "title": "PQQ for Air Reservoir overhaul",
        "description": "ScotRail Trains Limited (hereinafter referenced as ScotRail) are looking to tender for the provision of an Air Reservoir (various) overhaul service in accordance with rail safety critical and rail standards, and using Scotrail-provided materials. Noting the Out of Service (OSD) for HSTs, the business has revised the procurement strategy and the tender will now be separated into Lots to account for the differing contract end date required for the HSTs. - Lot 1 - for Class 153, 156 & 158 trains; and - Lot 2 - for HST Class 43 Power Car & Mark III Coach As part of the ITN process Suppliers will be able to bid for one or more Lots. An air reservoir is defined as a vessel (other than a pipe coil or ancillary fitting and part of the compressor) for containing compressed air. The group definition is based on the Reservoirs function, material and vehicle classification. ScotRail Trains Limited reserve the right to add or remove the numbers of overhauls per class of train, as the business requires.",
        "status": "active",
        "items": [
            {
                "id": "1",
                "additionalClassifications": [
                    {
                        "id": "50220000",
                        "scheme": "CPV"
                    },
                    {
                        "id": "50530000",
                        "scheme": "CPV"
                    },
                    {
                        "id": "71630000",
                        "scheme": "CPV"
                    }
                ],
                "deliveryAddresses": [
                    {
                        "region": "UKM"
                    }
                ],
                "relatedLot": "1"
            },
            {
                "id": "2",
                "additionalClassifications": [
                    {
                        "id": "50220000",
                        "scheme": "CPV"
                    },
                    {
                        "id": "50530000",
                        "scheme": "CPV"
                    },
                    {
                        "id": "71630000",
                        "scheme": "CPV"
                    }
                ],
                "deliveryAddresses": [
                    {
                        "region": "UKM"
                    }
                ],
                "relatedLot": "2"
            }
        ],
        "procurementMethod": "selective",
        "procurementMethodDetails": "Negotiated procedure with prior call for competition",
        "mainProcurementCategory": "services",
        "submissionMethod": [
            "electronicSubmission"
        ],
        "submissionMethodDetails": "https://scotrail.wax-live.com/S2C/DisplayModules/TradeModules/negotiations/Sourcing/DocumentMain.aspx?ProjectId=390&DocumentId=391&ApplicationInstanceID=27adc89e-0cb2-4b51-9bc1-34061f10156f",
        "tenderPeriod": {
            "endDate": "2026-07-24T12:00:00Z"
        },
        "documents": [
            {
                "id": "JUN558524",
                "documentType": "contractNotice",
                "title": "PQQ for Air Reservoir overhaul",
                "description": "ScotRail Trains Limited (hereinafter referenced as ScotRail) are looking to tender for the provision of an Air Reservoir (various) overhaul service in accordance with rail safety critical and rail standards, and using Scotrail-provided materials. Noting the Out of Service (OSD) for HSTs, the business has revised the procurement strategy and the tender will now be separated into Lots to account for the differing contract end date required for the HSTs. - Lot 1 - for Class 153, 156 & 158 trains; and - Lot 2 - for HST Class 43 Power Car & Mark III Coach As part of the ITN process Suppliers will be able to bid for one or more Lots. An air reservoir is defined as a vessel (other than a pipe coil or ancillary fitting and part of the compressor) for containing compressed air. The group definition is based on the Reservoirs function, material and vehicle classification. ScotRail Trains Limited reserve the right to add or remove the numbers of overhauls per class of train, as the business requires.",
                "url": "https://www.publiccontractsscotland.gov.uk/search/show/search_view.aspx?ID=JUN558524",
                "format": "text/html"
            },
            {
                "id": "economic",
                "documentType": "economicSelectionCriteria"
            },
            {
                "id": "technical",
                "documentType": "technicalSelectionCriteria"
            }
        ],
        "lots": [
            {
                "id": "1",
                "title": "Air Reservoir overhaul for Class 153, 156 & 158 trains",
                "description": "ScotRail Trains Limited (hereinafter referenced as ScotRail) are looking to tender for the provision of an Air Reservoir (various) overhaul service in accordance with rail safety critical and rail standards, and using Scotrail-provided materials. Noting the Out of Service (OSD) for HSTs, the business has revised the procurement strategy. The tender will now be separated into Lots to account for the differing contract end date required for the HSTs. Lot 1 - for Class 153, 156 & 158 trains; and As part of the ITN process Suppliers will be able to bid for one or more Lots. An air reservoir is defined as a vessel (other than a pipe coil or ancillary fitting and part of the compressor) for containing compressed air. The group definition is based on the Reservoirs function, material and vehicle classification. ScotRail Trains Limited reserve the right to add or remove the numbers of overhauls per class of train, as the business requires. The services must be in accordance with WOSS 310/8 Version 4: Repair Procedure - Dismantling, Cleaning, Examination and Repair, Reassembly and Pain ting, and Test Specification for train classes 153, 156, 158, & HSTs. As part of this service, SRTL requires the supplier to deliver a robust identification labelling system to asset manage each tank to identify the kit and record the overhaul completion date and associated data.. This is a pre-qualification activity in advance of a formal tender process. To participate, suppliers should access and complete the the pre Qualification Questionnaire published on our e-sourcing portal (wax Digital) at https://scotrail.wax-live.com/S2C/DisplayModules/TradeModules/Negotiations/Opportunities/ListEvents.aspxh",
                "status": "active",
                "hasOptions": false,
                "secondStage": {
                    "minimumCandidates": 4,
                    "maximumCandidates": 4
                },
                "submissionTerms": {
                    "variantPolicy": "notAllowed"
                },
                "contractPeriod": {
                    "durationInDays": 1440
                },
                "hasRenewal": true,
                "renewal": {
                    "description": "Option to extend for a further 12 months"
                }
            },
            {
                "id": "2",
                "title": "Air Reservoir overhaul for HST Class 43 Power Car & Mark III Coach",
                "description": "ScotRail Trains Limited (hereinafter referenced as ScotRail) are looking to tender for the provision of an Air Reservoir (various) overhaul service in accordance with rail safety critical and rail standards, and using Scotrail-provided materials. Noting the Out of Service (OSD) for HSTs, the business has revised the procurement strategy. The tender will now be separated into Lots to account for the differing contract end date required for the HSTs. Lot 2 - for HST Class 43 Power Car & Mark III Coach As part of the ITN process Suppliers will be able to bid for one or more Lots. An air reservoir is defined as a vessel (other than a pipe coil or ancillary fitting and part of the compressor) for containing compressed air. The group definition is based on the Reservoirs function, material and vehicle classification. ScotRail Trains Limited reserve the right to add or remove the numbers of overhauls per class of train, as the business requires. As part of this service, SRTL requires the supplier to deliver a robust identification labelling system to asset manage each tank to identify the kit and record the overhaul completion date and associated data.. This is a pre-qualification activity in advance of a formal tender process. To participate, suppliers should access and complete the the pre Qualification Questionnaire published on our e-sourcing portal (wax Digital) at https://scotrail.wax-live.com/S2C/DisplayModules/TradeModules/Negotiations/Opportunities/ListEvents.aspxh",
                "status": "active",
                "hasOptions": false,
                "secondStage": {
                    "minimumCandidates": 4,
                    "maximumCandidates": 4
                },
                "submissionTerms": {
                    "variantPolicy": "notAllowed"
                },
                "contractPeriod": {
                    "durationInDays": 720
                },
                "hasRenewal": true,
                "renewal": {
                    "description": "Possible extension of up to 12 months"
                }
            }
        ],
        "lotDetails": {
            "maximumLotsBidPerSupplier": 2
        },
        "coveredBy": [
            "GPA"
        ],
        "secondStage": {
            "invitationDate": "2026-08-21T00:00:00Z"
        },
        "submissionTerms": {
            "languages": [
                "en"
            ],
            "bidValidityPeriod": {
                "durationInDays": 90
            }
        },
        "classification": {
            "id": "50220000",
            "scheme": "CPV"
        },
        "hasRecurrence": false,
        "legalBasis": {
            "id": "32014L0025",
            "scheme": "CELEX"
        }
    },
    "language": "EN",
    "relatedProcesses": [
        {
            "id": "1",
            "relationship": [
                "planning"
            ],
            "scheme": "EU-OJ",
            "identifier": "2025/S 000-080078"
        }
    ],
    "description": "Wax Digital should be used for the completion of any submissions. The full scope of the requirements is contained within the published project on our Wax Digital e-sourcing tool which can be accessed here https://scotrail.wax-live.com/S2C/DisplayModules/TradeModules/Negotiations/Opportunities/ListEvents.aspx (SC Ref:835148)",
    "links": [
        {
            "rel": "canonical",
            "href": "https://api.publiccontractsscotland.gov.uk/v1/Notice?id=ocds-r6ebe6-0000835148"
        }
    ],
    "noticetype": "OJEU - F5 - Contract Notice (Utilities)"
}