LEED-NC v2.2 requirements compared to LEED v2009
USGBC recently posted a handy document to its LEED Resources page, titled Major Changes from LEED-NC v2.2 to LEED 2009 NC, it's in a table format and shows key changes from v2.2 to v2009. Prior to this posting I had not seen a resource like this except for this post from the RealLifeLEED blog. I'm going to add this document as a resource on our strategy guide, Upgrade to LEED 2009? How to Choose for Your Project.
USGBC has not (yet) posted analagous documents for CI, CS, Schools, or EBOMEBOM is an acronym for Existing Buildings: Operations & Maintenance, one of the LEED 2009 rating sytems.. Check it out: Major Changes from LEED-NC v2.2 to LEED 2009 NC
Also let us know what you think of the document. It seems thorough but not very deep. For example a key change in v2009 is the change to the lavatory faucets baseline for WEp1 to 0.5 gpm. The document refers to the changed baseline but does not note this very significant change.