Transition to CERN CA

US ATLAS has ceased to use OSG-supplied user certificates, in favor of certificates issued by the CERN certificate authority (CA). US ATLAS encourages you to obtain a personal certificate from the CERN CA (if you don't yet have one), and add it to your existing ATLAS VO membership.

How to renew an existing grid certificate, before or after it expires.

If you already have a grid certificate that is still valid but about to expire, you can replace it with a new certificate with the exact same DN as your current certificate. Renewing your existing certificate will save you the hassle of having to request a new certificate or re-register for a VO with a new certificate later on.

How to download, export, and convert your new grid certificate.

Download and import the certificate

To download and install your certificate: