Quarantine Act. Country/Territory Tonga Document type Legislation Date 1928 (2005) Source FAO, FAOLEX Long titleAn Act relating to quarantine. Subject Livestock Keyword Quarantine International trade Pests/diseases Geographical area Oceania, Small Island Developing States Abstract This Act makes provision with respect to measures for the inspection, quarantine and treatment of vessels, persons, goods and things for purposes of prevention of the introduction or spreading of diseases or pests affecting human beings. Full text English Website legislation.to