Certificate of Origin for bamboo products: state department certification of legal sourcing required for export with limited validity. Certificate of Origin for bamboo products is a prescribed proforma issued by the State Forest or Agriculture Department recording applicant and registration details, location and inspection information, transit pass data, source state of bamboo, and quantities of finished products with certified photographs; the issuing authority must certify bamboo was obtained from a legal source and the certificate is time-limited and signed by an authorised state signatory.