As far as I am concerned, any LEED 2009 projects can get Regional Priority Credits. Materials on the USGBC website (http://www.usgbc.org/ShowFile.aspx?DocumentID=8156) say, that even those registered before October 16 can apply for RPCs, they just need to ask USGBC staff to manually designate them.
Does it only apply to LEED 2009 projects? Can LEED v2.2 or v2.0 buildings also ask USGBC to manually designate RPCs, or is it valid only for the v3 projects?
Thanks!