A vessel, any part of which extends more than 33.5 m above water level, shall not transit any part of the Seaway until precise information concerning the height of the vessel has been furnished to the nearest Seaway station. (68 Stat. 93-96, 33 U.S.C. 981-990, as amended and secs. 4, 5, 6, 7, 8, 12 and 13 of sec. 2 of Pub. L. 95-474, 92 Stat. 1471) [48 FR 20691, May 9, 1983]