Special Economic Zone customs procedures: amended approvals and documentation govern duty-free imports, domestic procurement and monitoring. The amendment requires Board of Approvals sanction and creates a Unit Approval Committee to monitor zone units; mandates separate identifiable establishments. Domestic procurement is governed by two regimes: where export benefits are claimed, supplies require a bill of export assessed in-zone, removal on ARE-I and forwarding assessed documents to Central Excise within forty-five days; where no export benefits are claimed, a pre-authenticated Domestic Procurement Certificate enables removal on ARE-I with customs examination and similar forwarding requirements. Developers must list and certify goods, execute bonds, obtain utilisation certificates from chartered engineers, and store items in licensed warehouses, with duties and interest payable on breach.