If you aren't already aware, the VA publishes their own guidelines to be used on all BIM projects (which is mandatory for anything over a certain size.) It is a very good set of guidelines, of which I have copied concepts for some of the documents that I have written.
Check it out when you get a chance: http://www.cfm.va.gov/til/bim/BIMGuide/downloads/VA-BIM-Guide.pdf
They have some great procedures (like the firewalls). And even some things I can't figure out how they do!
