On February 8, 2012 from 1:30 to 3:30 EST EPA will conduct a webinar on CDX Registration for the CDR Rule. Discussions will include registration for the 2012 CDR, and how to access eCDRweb, the electronic reporting tool needed to complete the CDR Form U. There will be time for questions. Register for the webinar.
If you already do TRI on CDX, this shouldn't be a big deal.