Certification of biodegradable/compostable products is available from
DIN CERTCO (Germany)
TUV AUSTRIA
BPI (USA)
Biobased certification based on CEN/TS 16137 is available from:
DIN CERTCO (Germany)
TUV Austria
Biopreferred program (USA)
Answer taken from ‘Frequently Asked Questions on Bioplastics’, Aug 2013, European Bioplastics. For more information: http://en.european-bioplastics.org/standards/certification/