33 C.F.R. § 401.22 Preclearance of vessels.
Title 33 - Navigation and Navigable Waters
(a) No vessel, other than a pleasure craft 300 gross registered tonnage or less, shall transit until an application for preclearance has been made, pursuant to §401.24, to the Manager by the vessel's representative and the application has been approved by the Corporation or the Manager pursuant to §401.25. (b) No vessel shall transit while its preclearance is suspended or has terminated by reason of: (1) The expiration of the representative's guarantee of toll payment, (2) A change of ownership or representative of the vessel, or (3) A material alteration in the physical characteristics of the vessel, until another application for preclearance has been made and approved. (c) A non-commercial vessel of 300 gross registered tonnage or less cannot apply for preclearance status and must transit as a pleasure craft. (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) [39 FR 10900, Mar. 22, 1974, as amended at 47 FR 51122, Nov. 12, 1982; 55 FR 48598, Nov. 21, 1990; 65 FR 52914, 52915, Aug. 31, 2000; 66 FR 15329, Mar. 16, 2001; 70 FR 12972, Mar. 17, 2005]
Title 33: Navigation and Navigable Waters
PART 401—SEAWAY REGULATIONS AND RULES
Subpart A—Regulations
Preclearance and Security for Tolls
§ 401.22 Preclearance of vessels.

