The Solar Stewardship Initiative Assurance System will recognise existing credible and equivalent third-party standards systems, reporting frameworks, and certifications in order to avoid redundancy, audit fatigue, and to promote the use of such programmes.

The criteria, process and timeline for recognising and determining levels of alignment of third-party sustainability standards systems with the SSI Code are under development and will be made public at the end of 2023 after the SSI Code has been finalised following completion of the Pilot and of the Multi-Stakeholder Consultation. Our supporters have been implementing a range of sustainability standards and frameworks in their own value chains. As a starting point, the following sustainability standards systems, which are currently implemented by our supporters, are being assessed for recognition by and alignment with the SSI Code. If you would like to submit additional systems for consideration by the SSI, please contact us.

ISO 20400 Sustainable Procurement