International transshipment requires Customs permission, supervised loading/unloading, and secured handling to ensure proper onward shipment. International transshipment requires Customs permission before unloading or onward loading; permits are issued on application without bond, and loading or unloading is supervised with Preventive Officer endorsement and reconciliation against IGM and EGM entries. LCL transshipment mandates escorted movement to approved premises, seal inspection and resealing if tampered, de-stuffing and segregation under Customs supervision, restuffing and sealing for export under supervision, and custodian obligations including record-keeping, monthly summaries and a general bond to ensure export within the prescribed period.