The Adepticon team have posted a draft version of the Warhammer 40K Championships rules.
From their website:
As promised, here is the AdeptiCon 2011 Warhammer 40K Championships rules draft. Please keep in mind this is still a draft, and while it has been through countless revisions and proofing, it most likely is not the absolute final version. Additionally, new codices and/or official FAQ documents in the months leading up to the event could require changes to the following rules.