(a) Surety bonds, required under the provisions of this subpart, may be given only with corporate sureties holding certificates of authority from the Secretary of the Treasury as acceptable sureties on Federal bonds. Limitations concerning corporate sureties are prescribed by the Secretary in the current revision of Treasury Department Circular No. 570 (Companies Holding Certificates of Authority as Acceptable Sureties on Federal Bonds and as Acceptable Reinsuring Companies). The surety shall have no interest whatever in the business covered by the bond.

(b) Treasury Department Circular No. 570 is published in the Federal Register annually as of the first workday of July. As they occur, interim revisions of the circular are published in the Federal Register. Copies may be obtained from the Audit Staff, Bureau of Government Financial Operations, Department of the Treasury, Washington, DC 20226.