We are implementing a Green Cleaning Policy for an ID credit in NCv2009, which simply requires that you meet this prerequisite (not Credits 3.3 & 3.4). However, despite being NC, this project is a gut remodel and has existing cleaning equipment so we aren't making new equipment purchases. Has anyone defined what is required in this situation? Must 20% of our equipment meet the policy now, or can the policy simply apply to future purchases?