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Modifications of an Existing Certificate

Small changes to a current certificate, 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, can sometimes be accomplished through a modification process. The modification does not extend the certificate’s expiration date.

To apply for a modification, a company must submit:

A $500 USD fee will be invoiced after the complete application and supporting documentation are received.  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 certification is needed (in which case the expiration would be extended).  

The type and scope of supplementary testing required for a modification will be determined by BPI and BPI’s technical reviewer. 

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.   

Section 8 of BPI's Commercial Compostability Certification Scheme provides further technical information, including what testing may be required, for a modification.  









BPI is a science-driven organization that supports a shift to the circular economy by promoting the production, use, and appropriate end of lives for materials and products that are designed to fully biodegrade in specific biologically active environments.

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