---
title: "Design, certification, supply and installation of Single Variable Rate Sanding (SVRS) to ScotRail's Class 158 Diesel Multiple Units (DMUs)"
ocid: "ocds-r6ebe6-0000789948"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-r6ebe6-0000789948"
markdown_url: "https://d3tenders.com/contract/ocds-r6ebe6-0000789948.md"
json_url: "https://d3tenders.com/contract/ocds-r6ebe6-0000789948.json"
source: "Public Contracts Scotland"
current_stage: "Award"
buyer: "SCOTRAIL TRAINS LIMITED ."
published: "2025-03-17"
---

# Design, certification, supply and installation of Single Variable Rate Sanding (SVRS) to ScotRail's Class 158 Diesel Multiple Units (DMUs)

Buyer: SCOTRAIL TRAINS LIMITED .  
Current stage: Award  
OCID: ocds-r6ebe6-0000789948

[View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-r6ebe6-0000789948)  
[Download OCDS JSON](https://d3tenders.com/contract/ocds-r6ebe6-0000789948.json)

## Summary

ScotRail Trains Limited, based in Glasgow, has completed a procurement for the design, certification, supply, and installation of Single Variable Rate Sanding (SVRS) on ScotRail’s Class 158 Diesel Multiple Units (DMUs). This project, titled "Design, certification, supply and installation of Single Variable Rate Sanding (SVRS) to ScotRail’s Class 158 Diesel Multiple Units (DMUs)," falls within the railway services industry category and involves engineering works at Inverness Depot and Haymarket Depot. The contract, awarded to Siemens Mobility Limited, aims for fitment to begin in Autumn 2025 to enhance braking performance under low-adhesion conditions.

This tender presents significant opportunities for businesses involved in railway engineering and related services, particularly those specialising in innovative braking systems and technical certification processes. The procurement method was limited to Siemens Mobility Limited, reflecting the technical uniqueness of their solution. Businesses with capabilities to provide similar advanced technical solutions or support services for railway equipment installations would benefit from exploring potential collaborations or future tenders with ScotRail and other similar entities.

## Notice

Turnkey solution for the design, certification, supply, and installation of Single Variable Rate Sanding (SVRS) for ScotRail's Class 158 Diesel Multiple Units (DMUs). ScotRail requires an SVRS system that has previously received technical approval (i.e., ROSCO approval and full certification through the engineering change process). The SVRS systems must be capable of providing proven improvements in braking performance under low-adhesion conditions for the Class 158 DMU fleet. This must be evidenced by industry performance data demonstrating these improvements specifically for the Class 158 DMUs. ScotRail aims to commence fitment in Autumn 2025 to benefit from the system's benefits as soon as possible. ScotRail intends to use the negotiated procedure without prior call for competition to contract with Siemens Mobility Limited. This approach is considered the only viable option, as Siemens Mobility is the only supplier who can provide a technically proven solution with demonstrated performance benefits on an in-service fleet and the capability to meet the challenging project timeline.

### Lot Information

Lot 1

Turnkey solution for the design, certification, supply, and installation of Single Variable Rate Sanding (SVRS) for ScotRail's Class 158 Diesel Multiple Units (DMUs). ScotRail requires an SVRS system that has previously received technical approval (i.e., ROSCO approval and full certification through the engineering change process). The SVRS systems must be capable of providing proven improvements in braking performance under low-adhesion conditions for the Class 158 DMU fleet. This must be evidenced by industry performance data demonstrating these improvements specifically for the Class 158 DMUs. ScotRail aims to commence fitment in Autumn 2025 to benefit from the system's benefits as soon as possible. ScotRail intends to use the negotiated procedure without prior call for competition to contract with Siemens Mobility Limited. This approach is considered the only viable option, as Siemens Mobility is the only supplier who can provide a technically proven solution with demonstrated performance benefits on an in-service fleet and the capability to meet the challenging project timeline.

### Procurement Information

.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Public Contracts Scotland |
| Latest notice | https://www.publiccontractsscotland.gov.uk/search/show/search_view.aspx?ID=MAR526180 |
| Notice type | OJEU - F15 - Voluntary Ex Ante Transparency Notice |
| Procurement type | Standard |
| Procurement category | Goods |
| Procurement method | Limited |
| Procurement method details | Award procedure without prior publication of a call for competition |
| Tender suitability | Not specified |
| Awardee scale | Large |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 17 Mar 2025 |
| Submission deadline | Not specified |
| Future notice date | Not specified |
| Award date | 12 Feb 2025 |
| Contract period | Not specified |
| 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 | Complete |
| Awards status | Not specified |
| Contracts status | Active |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | SCOTRAIL TRAINS LIMITED . |
| Locality | GLASGOW |
| Post town | Glasgow |
| Postcode | G2 6HQ |
| Country | Scotland |
| ITL 1 | TLM Scotland |
| ITL 2 | TLM3 West Central Scotland |
| ITL 3 | TLM32 Glasgow City |
| Local authority | Glasgow City |
| Electoral ward | Anderston/City/Yorkhill |
| Westminster constituency | Glasgow North |
| Delivery location | TLM Scotland |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | SIEMENS MOBILITY |

## CPV Codes

### Divisions

- 34 - Transport equipment and auxiliary products to transportation

### Codes

- 34600000 - Railway and tramway locomotives and rolling stock and associated parts
- 34631400 - Wheel axles and tyres and other parts of locomotives or rolling stock

## Release History

- 17 Mar 2025 at 00:00 - Award - OJEU - F15 - Voluntary Ex Ante Transparency Notice - https://www.publiccontractsscotland.gov.uk/search/show/search_view.aspx?ID=MAR526180

## Documents

- https://www.publiccontractsscotland.gov.uk/search/show/search_view.aspx?ID=MAR526180
  Design, certification, supply and installation of Single Variable Rate Sanding (SVRS) to ScotRail's Class 158 Diesel Multiple Units (DMUs) - Turnkey solution for the design, certification, supply, and installation of Single Variable Rate Sanding (SVRS) for ScotRail's Class 158 Diesel Multiple Units (DMUs). ScotRail requires an SVRS system that has previously received technical approval (i.e., ROSCO approval and full certification through the engineering change process). The SVRS systems must be capable of providing proven improvements in braking performance under low-adhesion conditions for the Class 158 DMU fleet. This must be evidenced by industry performance data demonstrating these improvements specifically for the Class 158 DMUs. ScotRail aims to commence fitment in Autumn 2025 to benefit from the system's benefits as soon as possible. ScotRail intends to use the negotiated procedure without prior call for competition to contract with Siemens Mobility Limited. This approach is considered the only viable option, as Siemens Mobility is the only supplier who can provide a technically proven solution with demonstrated performance benefits on an in-service fleet and the capability to meet the challenging project timeline.

## Notice URLs

- http://
- https://api.publiccontractsscotland.gov.uk/v1/Notice?id=ocds-r6ebe6-0000789948
- https://www.scotrail.co.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-r6ebe6-0000789948. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-r6ebe6-0000789948.json.