Hello I'm working on trying to achieve 25% sustainable purchasing. However, I'm still a little confused about what is supose to be the official Performance Period, considering we are trying to Re-certify under the LEED-EBOM V3 2009 version. Because its considered a new Credit do we start the minimum 3 month evalution at the start when we first registered to Re-certify. or can the minimum 3 months reflec anytime of the year as long as I have three months worth of data? Please Advise, Thank You ....Rey