As outlined in Section 8 of BPI's Commercial Compostability Certification Scheme, BPI certificate holders are required to notify BPI of all alterations to the manufactured item without delay. BPI will decide the extent to which testing must be performed and whether the change is significant. The respective test report(s) shall be sent to BPI by the approved testing laboratory.
The type and scope of supplementary testing will be determined by BPI in individual cases in coordination with BPI’s Technical Reviewer. This is for small changes, such as adding printing inks to a previously unprinted item, changing a resin grade or supplier for PLA or PBAT, or adding a new manufacturing site for certified products.
The modification of an existing certificate does not extend that certificate’s expiration date. A modification submitted within one year of the certificate’s expiration date will be processed as a recertification that will extend the certificate’s validity period for three years from the date of expiration. For more information on the recertification process, including costs, visit the Recertification page.
To apply for a modification, a company must submit:
A $500 USD fee will be invoiced after the complete application and supporting documents are received.
The type and scope of supplementary testing required for a modification will be determined by BPI and BPI’s technical reviewer. Based upon the information provided, BPI and BPI's technical reviewer will determine if the requested changes qualify for a modification or require a full New Certification (in which case the expiration date would be extended, and additional fees assessed).
When the modification process is complete a BPI Project Manager will send the following items to the BPI Member: