How do I add additional material(s) to an existing certificate?

Additional materials that fall under a scope that is already stated on the certificate can normally be added without an additional on-site audit. For products with individually calculated GHG values, the Certification Body must upload an adjusted audit procedure with the GHG value in the ISCC HUB and the GHG value must have been verified.

However, for a processing unit, an extension audit may be necessary if the new material requires production facilities that have formerly not been part of the audit. The Certification Body is responsible for determining if an extension audit is required.