(a)  When acknowledging receipt of the notice of assignment, the contracting officer shall notify the contractor that all future invoices or other requests for payment under the contract must specify the name and address of the assignee and include a notation that payments due thereunder have been duly assigned. The contracting officer must send a copy of the acknowledgment to the contract finance office.

(b)  When payments under requirements or indefinite quantity contracts that are for the sole use of GSA have been assigned, the contracting officer shall provide all GSA offices that will place orders against the contract the name and address of the assignee that will receive amounts due under the contract. The notification should also state that the contracting officer requested the contractor to specify the name and address of the assignee on future invoices.