Coastal carriage exemptions streamline customs formalities while mandating coastal manifests and marking for domestic coastal shipments. Coastal vessels carrying exclusively domestic coastal goods are exempted from specified Customs Act formalities, with a new requirement that coastal arrival and departure manifests be prepared in duplicate and submitted to the proper officer before arrival and departure when operating at EXIM berths. Containers and non containerised consignments must be marked 'For Coastal Carriage Only,' containers sealed with tamper proof one time seals, and no routine examination of coastal goods is required. The relaxations apply to Indian vessels and eligible foreign vessels under the Ministry of Shipping policy, subject to safeguards including random preventive checks and separate berthing where both coastal and foreign traffic exist.