In Accordance with SOLAS* as amended in 2000, passenger marine ships, the vessels of over 300 tons in international voyage and the vessels of over 500 tons in non-international voyage are obligated to carry the AIS. The vessels newly built on and after July 1, 2002 will be obligated to carry the AIS on the date of new building and the existing vessels will be obligated in phases for a period of July1, 2002 to July 1, 2008. *SOLAS: International Convention for the Safety Of Life At Sea