On August 1, the acquiring department will advise the requiring department of any Category II MIPRs on hand citing expiring appropriations it will be unable to obligate prior to the fund expiration date. If an unforeseen situation develops after August 1 that will prevent execution of a contract, the acquiring department will notify the requiring department as quickly as possible and will return the MIPR. The letter of transmittal returning the MIPR will authorize purchase by the requiring department and state the reason that the acquisition could not be accomplished.