No certifying or disbursing officer shall be held liable for any amount certified or paid by him to any provider of services or other person:
(a) Where the adjustment or recovery of such amount is waived (see Sec. 405.355), or
(b) Where adjustment (see Sec. 405.352) or recovery is not completed prior to the death of all persons against whose benefits such adjustment is authorized.
Suspension and Recoupment of Payment to Providers and Suppliers and
Collection and Compromise of Overpayments