I recently completed a CI in an old building with a constant volume Interior and console heat pumps on the perimeter. As a result to achieve points under the credit EAc1.3, the prescriptive criteria option was utilized for equipment effeciency which adhered to the Core performance guide. The project was submitted and all supplemental units met the criteria, which as my understanding was project scope of work, and all that needed to pass. Below is a respond from the reviewer which is unique to any interpretation I have seen before.

"1.All HVAC equipment installed as part of the scope of work satisfies the relevant Core Performance Guide requirements AND the project scope of work includes either of the following: a) Air handlers with Variable Speed Controls complying with the requirements of the Core Performance Guide Section 3.10 and supply at least 60% of the total supply air volume used within the project scope, OR b) Mechanical equipment complying with the prescriptive efficiency requirements of the Core Performance Guide Section 2.9 that provides at least 60% of the cooling or heating capacity for the project scope. 2. The relevant criteria from the Core Performance Guide has been met for all HVAC systems serving the area within the project scope, whether or not the HVAC systems are installed as part of the tenant scope of work."

Has a new addendum been sent out by the USGBC regarding this credit? I haven't found anything in the reference guide or recent addendums to suggest the interpretation of this credit has changed to include equipment that's 60% of the project. Has anyone else seen a review like this? Would a CIR be worth the time and money? Thank you.