33 C.F.R. § 401.22
(b) No vessel shall transit while its preclearance is suspended or has terminated by reason of:
(c) Unless otherwise permitted by an officer 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; 72 FR 2620, Jan. 22, 2007; 79 FR 12660, Mar. 6, 2014]