Pub. L. 103-182, tit. VI, subtit. D, sec. 688
AMENDMENT TO THE ACT TO PREVENT POLLUTION FROM SHIPS.
SEC. 688. AMENDMENT TO THE ACT TO PREVENT POLLUTION FROM SHIPS. Section 9(e) of the Act to Prevent Pollution from Ships (94 Stat. 2301, 33 U.S.C. 1908(e)) is amended by striking out “shall refuse or revoke” and all of the text following thereafter and inserting “shall refuse or revoke the clearance required by section 4197 of the Revised Statutes of the United States (46 U.S.C. App. 91). Clearance may be granted upon the filing of a bond or other surety satisfactory to the Secretary.”.