The Registry is run by the iGEM Foundation, so registration for individual and group accounts is done through iGEM.org. In order to use the resources and become a contributer on the Registry you will need a user account and belong to an iGEM group (lab, course, iGEM team). We've provided
Applying for an iGEM account, will give you access to all iGEM websites including the Registry.
For more information see igem.org