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HGV Accreditation Scheme

Project Brief

One of the key opportunities identified in the HGV barriers and opportunities report, is to increase the uptake of existing retrofit technology by the operators in the market. The report identified that an independent verification of the performance of technologies and a credible assessment of the applicability of equipment to different operational environments were the market needs. This project has developed an accreditation scheme for retrofit technology to enable equipment manufacturers or vehicle operators to conduct robust, repeatable and reliable tests to validate the impact on fuel consumption and emissions under a range of operating conditions. The scheme will also assess the operational characteristics of the technology to provide broad information to potential operators on potential applicability. The test and accreditation scheme is to be focused on proving existing technology in a back-to-back comparison under realistic HGV operational scenarios.

Accreditation Scheme flyer

By the end of 2016, LowCVP’s commercial vehicle retrofit technologies accreditation scheme and associated test protocols covered the full range of conventional freight vehicle activities, from long haul through to city-centre multidrop operations. Further development and expansion of these protocols/cycles to cover other commercial vehicle applications is needed to broaden their reach and ability to ensure that technologies are effective in the real world.
Initially, the focus will be on refining the city centre (track-based) test cycle to better replicate measured London traffic conditions and establishing the closest equivalent chassis dyno cycles for use where emissions not currently measurable robustly by PEMS are required (e.g. particulate matter and nitrous oxide).
Subject to further external funding, other vehicle applications could be added, e.g. refuse collection and construction vehicles. Developing the city centre cycle also presents a potentially very cost-effective route to evaluate further commercial vehicle technologies and gather further Euro VI baseline data. LowCVP are seeking additional funds to exploit these opportunities.


  • To develop a revision to the 2016 city centre test cycle that is more closely aligned (in terms of average speed and stops per km) to traffic conditions as measured by TfL.
  • To identify options for matching of existing test-track and chassis dyno cycles.


A revised cycle and revised test protocol document to reflect dyno-track matching analysis.

Delivery Timetable

April 2017 – October 2017

Project Management

This project will be managed by Brian Robinson, with input from CVWG members.

Project Partners

Transport for London, Millbrook

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Sophie Ogunbiyi, Manager, External Affairs, Toyota Motor Europe