Developing the Zero Emission Vehicle Retrofit Accreditation Scheme: Creating a Code of Practice for EV Retrofit

Background and Challenge

This project will create and develop a code of practice for EV retrofit installations, based upon our preliminary conclusions from the ‘EV Retrofit Impact on CVRAS’ project, which will be published as a publicly accessible standard (PAS) to form a key part of the zero emission vehicle retrofit accreditation scheme (ZEVRAS).

A review of processes and procedures associated with the certification and registration of EV retrofit vehicles will also be undertaken.


  • To propose areas for consideration within a code of practice, supported by the EV retrofit special interest group and Zemo membership.
  • To support an organisation such as the Faraday Institution in the creation and publication of a PAS.
  • To support the DVLA in examining the process for assigning ‘fuel type’ to EV retrofit vehicles.
  • To support the DVLA in a review of the assessment criteria to determine when it is necessary for a vehicle to be re-registered.
  • To support the DVSA in a review of the IVA process relating to EV retrofit vehicles.

Actions and Outputs

  • Engage the EV retrofit special interest group in a series of workshop events to discuss proposed scope and content for a code of practice.
  • Publication of a code of practice for EV retrofit conversions in the form of a publicly accessible standard
  • Propose process recommendations for fuel type assignment, re-registration assessment and IVA assessment for EV retrofit conversions to the DVLA and DVSA respectively.


October 2021 – March 2022 (project will continue into FY 2022)

Join Us

If you want to get involved in the work of one or more of Zemo Partnership's Working Groups, why not join us, or contact the Secretariat for more information.


Jonathan Murray

Zemo Partnership Lead:
Jonathan Murray

Policy and Operations Director