(a) When MCC is owed a debt by an employee of another agency, MCC shall provide the agency with a written certification that the debtor owes MCC a debt (including the amount and basis of the debt and the due date of payment) and that MCC has complied with this part.

(b) When another agency is owed the debt, MCC may use salary offset against one of its employees who is indebted to another agency, if requested to do so by that agency. Such request must be accompanied by a certification that the person owes the debt (including the amount and basis of the debt and the due date of payment) and that the agency has complied with its regulations as required by 5 U.S.C. 5514 and 5 CFR part 550, subpart K.