Citation(s) from the GunPolicy.org literature library
Alpers, Philip and Conor Twyford. 2003 ‘Pacific Small Arms Legislation: Domestic and regional issues.’ Small Arms in the Pacific; Occasional Paper No. 8, p. 64. Geneva: Small Arms Survey, the Graduate Institute of International and Development Studies, Geneva. 31 March
Other than Australia, only three countries -- Federated States of Micronesia, American Samoa, and Papua New Guinea -- legally require licensing authorities to undertake specific and comprehensive checks of applicants' backgrounds.
As a US territory, American Samoa is a 'Brady State', subject to the mandatory pre-purchase background checks of the mainland's Brady Law.