Corporate surety bonds.

A corporate surety bond may be filed only if the surety company issuing such bond holds a certificate of authority from the Secretary of the Treasury certifying that such company is an acceptable surety on Federal bonds, subject to the limitations prescribed by Treasury Department Circular 570 as amended. (Sec. 6, 61 Stat. 648, as amended, sec. 7101, 68A Stat. 847, as amended; (6 U.S.C. 6, 26 U.S.C. 7101))