Measures to enhance maritime security in the Red Sea, Gulf of Aden, Indian Ocean and Arabian Sea The Directorate would like to remind all concerned of Merchant Shipping Notice 82 Rev.1, highlighting the need to register on the official website of the Maritime Security Centre – Horn of Africa (MSCHOA) whilst transiting the Red Sea, Gulf of Aden, Indian Ocean and Arabian Sea. For more information, please read the Merchant Shipping Notice 187 by clicking here. Should you have any questions concerning this or other matters, please contact Jotham Scerri-Diacono or any other member of the shipping team at Ganado Advocates. Go back