This article is from the Science Fiction Fandom FAQ, by Vicki Rosenzweig vr@panix.com with numerous contributions by others.
Yes. As the Worldcons approach, there are people who offer
memberships for transfer at rates lower the the current registration
rate. But you need to be quick, they tend to get grabbed quickly.
Once an agreement is reached, you'll need to contact the Worldcon
about the transfer by supplying both names and addresses and the
membership number. It's also a good idea for the new member to have
a written backup to bring with them to the Worldcon.
 
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