EPCG and Advance Authorization bond closure requires listed documents and email to expedite bank guarantee return and avoid deficiencies. Authorization Holders seeking closure of bonds and return of Bank Guarantees under EPCG must submit self attested copies of: Export Obligation Discharge Certificate/Redemption Letter, ANF 5B certified by a Chartered Accountant, Installation Certificate by a Chartered Engineer or jurisdictional Customs authority, and the Authorization with Condition Sheet. For Advance Authorization, submit Export Obligation Discharge Certificate/Redemption Letter, ANF 4F certified by a Chartered Accountant, and the Authorization with Condition Sheet. Provide an email address for electronic communication of closure or deficiencies.