World Science Fiction Society
The purposes of the WSFS, according to its rules, are as follows: to choose the recipients of the annual Hugo Awards (Science Fiction Achievement Awards), to choose the locations and Committees for the annual World Science Fiction Conventions (the Worldcons), to attend those Worldcons, and to choose the locations and Committees for the occasional North American Science Fiction Conventions (the NASFiCs). (A NASFiC is held in North America in any year where the Worldcon is outside of North America.)