Emergency Powers Act. Country/Territory Tonga Document type Legislation Date 1959 (2005) Source FAO, FAOLEX Long titleAn Act to confer certain powers in an emergency. Subject Agricultural & rural development, Land & soil Keyword Disasters Expropriation Geographical area Oceania, Small Island Developing States Abstract This Act confers powers upon His Majesty in Council in case of the occurrence of an emergency (not defined). Full text English Website legislation.to References - Legislation Amended by Miscellaneous Amendments (Privy Council) Act 2010 (No. 42 of 2010). Legislation | Tonga | 2010 Keyword: Institution Source: FAO, FAOLEX