Updated Treasury Guidance on PPP:

The amount of forgiveness of a PPP loan depends on the borrower’s payroll costs over an eight-week period; when does that eight-week period begin? Answer: The eight-week period begins on the date the lender makes the first disbursement of the PPP loan to the borrower. The lender must make the first disbursement of the loan no later than ten calendar days from the date of loan approval.