Continental Shelf (Repeal) Act 2009 (No. 18 of 2009). Country/Territory Tonga Document type Legislation Date 2009 Source FAO, FAOLEX Long titleAn Act to repeal the Continental Shelf Act. Subject Environment gen., Sea Keyword Marine pollution Maritime zone Continental shelf Oil pollution Sovereignty Geographical area Asia and the Pacific, Oceania, Polynesia, Small Island Developing States, South Pacific Entry into force notes This Act shall come into force on the same day as the Maritime Zones Act 2009. Abstract This Act repeals the Continental Shelf Act (Cap. 63) as a consequence of the coming into force of the Maritime Zones Act 2009. Full text English Website legislation.to References - Legislation Repeals Continental Shelf Act (Cap. 63). Legislation | Tonga | 1970 (2005) Keyword: Marine pollution, Maritime zone, Continental shelf, Oil pollution, Sovereignty Source: FAO, FAOLEX