June 18, 2018
Both bids expressed an interest in hosting the Games during last year's edition of the multi-sport event in Vanuatu.
They were then invited to formally submit bids for the Games with both then forwarding documents to the PGC.
Niue has never hosted the quadrennial event, a scaled-down version of the PGC's flagship Pacific Games.
The small island territory in the South Pacific Ocean, which has a population of around 1,700 people, had proposed having eight sports on the programme at the 2025 Pacific Mini Games.
American Samoa, which consists of five main islands and two coral atolls, staged the Pacific Mini Games in 1997 when competition took place in the capital of Pago Pago.
Both hopes of staging the Games are currently on hold with the PGC informing the General Assembly that requirements had not been achieved.
"When the Executive Committee assessed both of the bids, we came to a unanimous decision that they were not compliant with the charter requirements," said Andrew Minogue, PGC chief executive.
"Some of these could have been dealt with through negotiation.
"But critically the missing ingredient from both was a Government guarantee.
"A financial underwriting of the Games is essential, we cannot run a Games without a Government providing financial support to hosting the event."