Department for Transport · Find a Tender

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Tender: Accreditation and Monitoring Service for CVRAS – Reducing NOx Emissions from Older Diesel Buses

Released 4 months ago

Closed04 Aug 2026

Est. valueEstimate£30K to £190K

LocationUnited Kingdom

AgencyDepartment for Transport

SourceFind a Tender

CategoryTransport & Logistics

Submissions closedClosed Tue, 4 Aug 2026

About

The Department for Transport is seeking a supplier to provide an outsourced accreditation and monitoring service for the Clean Vehicle Retrofit Accreditation Scheme (CVRAS) to support the reduction of air pollutant emissions from older and more polluting diesel buses during the transition to a zero-emission fleet. The scheme, launched in 2017 and funded by Government, accredits retrofit technologies that can reduce nitrogen oxides (NOx) emissions from buses to close to Euro VI levels. The required service includes monitoring performance of the CVRAS bus fleet, improving compliance including telematics reporting, engaging bus operators and local authorities on bus fleet maintenance and supporting accurate functioning of Clean Air Zone charging.

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Similar awarded contracts12

Typical £30K to £190K

Clean Vehicle Retrofit Accreditation Scheme (CVRAS) Delivery for UK Clean Air ComplianceEnergy & EnvironmentEnergy Saving Trust Limited

£524,850

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Technical Support for Clean Vehicle Retrofit Accreditation Scheme (CVRAS) Operations and Enforcement System DevelopmentEnergy & EnvironmentLow Carbon Vehicle Partnership

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2 new transport and logistics tenders

Provision of Supported Local Bus (including Kent Karrier) and Home to School Transport Services – Kent County CouncilTransport & Logistics · Closes 22 Feb 2029

Supply, Installation and Support of On‑Bus Destination Displays and AVA System for South Yorkshire Franchised Bus FleetTransport & Logistics · Closes 4 Dec 2026

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