(a) General. We shall not certify payment to—

(1) Any person designated as your assignee or transferee; or

(2) Any person claiming payment because of an execution, levy, attachment, garnishment, or other legal process, or because of any bankruptcy or insolvency proceeding against or affecting you.

(b) Enforcement of a child support or alimony obligation. If you have a legal obligation to provide child support or make alimony payments and legal process is issued to enforce this obligation, the provisions of paragraph (a) of this section do not apply.