--- title: "Class 156 Life Extension - Amplifier upgrades" ocid: "ocds-h6vhtk-0598c1" canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-0598c1" markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-0598c1.md" json_url: "https://d3tenders.com/contract/ocds-h6vhtk-0598c1.json" source: "Find A Tender Service" current_stage: "Award" buyer: "SCOTRAIL TRAINS LIMITED ." published: "2025-09-11" --- # Class 156 Life Extension - Amplifier upgrades Buyer: SCOTRAIL TRAINS LIMITED . Current stage: Award OCID: ocds-h6vhtk-0598c1 [View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-h6vhtk-0598c1) [Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-0598c1.json) ## Summary The public procurement process involves ScotRail Trains Limited, a prominent player in railway services, as the contracting authority. The procurement is titled "Class 156 Life Extension – Amplifier upgrades" and falls under the industry category of Amplifiers. The procurement pertains to the supply, design, and ongoing support of Automatic Amplifiers for the Class 156 fleet of Diesel Multiple Units (DMUs) in the United Kingdom, particularly in the region of UKM. The process is conducted via a limited procurement method without prior publication of a call for competition, compliant with The Utilities Contracts (Scotland) Regulations 2016. The contract was awarded on 11th September 2025, the procurement stage is complete, and the award is currently active. This procurement provides significant opportunities for entities that specialise in supplying and maintaining amplifier systems compatible with existing intellectual property. Businesses that can leverage existing integrations and possess operational insights into the specific technological requirements of the fleet are best positioned to benefit. The awarded contract ensures continuity and exclusivity due to the specialised nature of the equipment and existing intellectual property rights held by ScotRail's original equipment manufacturer (OEM), underscoring potential growth for those who bring innovative adaptation and support services within the railway amplifier sector. ## Notice This is a voluntary ex ante transparency (VEAT) notice. The Supply, design and ongoing support of Automatic Amplifiers for the Class 156 fleet of Diesel Multiple Units (DMUs). ### Lot Information Lot 1 This is a voluntary ex ante transparency (VEAT) notice. The provision for Fitment of Automatic Amplifiers is to address low Public Address (PA) Speech Transmission Index (STI). Also, Mobile Realtime Communications Module (MRCM comms) for the Class 156 fleet of Diesel Multiple Units (DMUs). The proposed contract will provide continuity of operation of the system based upon the existing solution in which there has been significant prior investment. The Saloon Amplifier Call for aid Units (SACUs) and Saloon Amplifiers (SAs) will automatically amplify the voltage level of the manual PA to be at a set volume, regardless of the voltage entering the amplifier. The purpose of this is to maintain proper PA volume in multiple. ### Procurement Information On the basis of The Utilities Contracts (Scotland) Regulations 2016 in accordance with regulation 48.(1)(c)(iii) a utility may award a contract following a negotiated procedure without prior publication of a call for competition where the works, supplies or services can be supplied only by a particular economic operator due to the protection of exclusive rights, including intellectual property rights. Single Source is required due to integration with existing Amplifiers and systems on the fleet. The Contractor is the OEM for the existing passenger information system equipment and hold the IPR for the system. Therefore, no other provider can supply and maintain the equipment which will integrate with the existing system. ## Key Details | Field | Value | | --- | --- | | Publication source | Find A Tender Service | | Latest notice | https://www.find-tender.service.gov.uk/Notice/055877-2025 | | Notice type | Award 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 | Not specified | | All stages | Award | ## Dates | Field | Value | | --- | --- | | Publication date | 11 Sep 2025 | | Submission deadline | Not specified | | Future notice date | Not specified | | Award date | 10 Sep 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 | Not specified | | Awards status | Active | | 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 | ## CPV Codes ### Divisions - 32 - Radio, television, communication, telecommunication and related equipment ### Codes - 32343000 - Amplifiers ## Release History - 11 Sep 2025 at 14:14 - Award - Award Notice - https://www.find-tender.service.gov.uk/Notice/055877-2025 ## Notice URLs - https://api.publiccontractsscotland.gov.uk/v1/Notice?id=ocds-r6ebe6-0000808968 - https://www.publiccontractsscotland.gov.uk/search/Search_AuthProfile.aspx?ID=AA30589 ## 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-0598c1. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-0598c1.json.