Customs exemption amendments expand import permissibility and define SEZ and deemed export documentation requirements for duty relief. Amendments to notifications modify conditions for permitting imports, add public notice as an alternative to special order, align the term 'manufacture' with the Export and Import Policy, extend Duty Entitlement Pass Book conditions to supplies to SEZ units, define SEZ by policy reference, require excise-certified invoice details and values for deemed export supplies, permit imports from any specified port for deemed exports, and substitute a provision exempting materials supplied to Export Oriented Units, SEZs and specified parks from customs and certain additional duties subject to paragraph 1 conditions.