This is a process of continuous improvement. New chemical guidance sheets will be developed and existing ones updated.
The chemical guidance sheets are attached to the MRSL at the relevant substance. You can find the ZDHC MRSL here.
ZDHC has developed chemical guidance sheets that explain why a certain substance is considered hazardous, where and how it is used in the supply chain, what the alternatives are and how to ensure the substance is not used in your materials and products.