You need to be registered with a LHC-recognised VO (Virtual Organisation) before you can begin using the WLCG.
See the WLCG User Guide for instructions on how to set up and get started.
Users interested in other VOs, please search for your VO on the EGI Operations portal or on the OSG Registration database. If you can't find your VO, please open a GGUS ticket.
fax: +41 22 766 8722
WLCG Office, Mailbox G08400,
CERN, CH-1211, Geneva, Switzerland