Certificate of Origin designation requires issuing authorities and exchange of officials' details, seals and verification contacts. Certificates or Statements of Origin must be issued by authorities or authorised exporters designated by each Party, with Parties exchanging names, addresses, specimen signatures and official seals of issuing officials. Designated contact points in each Party receive and transmit specimen seals and signatures and handle verification references for Proof of Origin. Any changes to names, designations, addresses, specimen signatures or officials' seals must be promptly notified to the other Party.