HVCC Info - Which Reg?

I am working on getting our bank set up to request appraisals through a third party. I was reading HVCC info I found on the internet and saw a section that stated: "The lender shall ensure that the borrower is provided a copy of any appraisal report concerning the borrower's subject property promptly upon completion at no additional cost to the borrower, and in any event no less than three days prior to the closing of the loan." We have not been getting copies of appraisals to customers three days before closing. A lot of times we are waiting to get the appraisal back to get the loan closed ASAP. In what Reg can I find this? I wanted to be sure it was correct before I train our lending staff on this.