(b) For purposes of centralized administrative offset, a claim or debt is not delinquent if:
- (1) It is in litigation or foreclosure;
- (2) It will be disposed of under an asset sale program within one year after becoming eligible for sale;
- (3) It has been referred to a private collection contractor for collection;
- (4) It has been referred to a debt collection center;
- (5) It will be collected under internal offset, if such offset is sufficient to collect the claim within three years after the date the debt or claim is first delinquent; and
- (6) It is within a specific class of claims or debts which the Secretary of the Treasury has determined to be exempt, at the request of an agency.