Verification of origin: designated repository will authenticate Certificate of Origin signatures to support preferential duty claims. Verification of origin under Free/Preferential Trade Agreements requires a prescribed Certificate of Origin signed and sealed by authorised signatories. Where assessing officers doubt signatures/seals, they must verify records with the designated repository. As an interim measure, the Additional Commissioner of Customs (Tech.), Headquarters, Bangalore is appointed as repository for circulated signatures/seals of authorised signatories within the Bangalore Customs Commissionerate to authenticate Certificates of Origin for preferential duty claims.