The NHS Evergreen Sustainable Supplier Assessment scores suppliers on sustainability maturity across themes such as emissions, waste and social value, and is increasingly requested in NHS procurement. WeZero’s Evergreen toolkit maps the evidence already in your account — measured Scope 1, 2 and 3 emissions, net zero targets, your Carbon Reduction Plan and reduction projects — to each question in the maturity matrix, highlights gaps, and exports the completed matrix in the format used by the Evergreen platform. Annual reassessments start from your current position. The Evergreen toolkit is included in the Advanced and Managed plans.