A NASFiC is held in North America in any year where the Worldcon is outside of North America.
Wellington, New Zealand, was selected to host the 2020 Worldcon. Members of the 2019 NASFiC will vote on a site for the 2020 NASFiC. (Worldcon sites are selected two years in advance, and NASFiC sites one year in advance.)
Latest News: Voting Open for 2020 NASFiC.