(a) Suspension shall be for a temporary period pending the completion of an investigation or ensuing legal, debarment, or Program Fraud Civil Remedies Act proceedings, unless terminated sooner by the suspending official or as provided in paragraph (b) of this section.

(b) If legal or administrative proceedings are not initiated within 12 months after the date of the suspension notice, the suspension shall be terminated unless an Assistant Attorney General or United States Attorney requests its extension in writing, in which case it may be extended for an additional six months. In no event may a suspension extend beyond 18 months, unless such proceedings have been initiated within that period.

(c) The suspending official shall notify the Department of Justice of an impending termination of a suspension, at least 30 days before the 12-month period expires, to give that Department an opportunity to request an extension.