33 CFR §401.22

1. (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.
2. (b)No vessel shall transit while its preclearance is suspended or has terminated by reason of:
   1. (1)The expiration of the representative's guarantee of toll payment,
   2. (2)A change of representative of the vessel,
   3. (3)A material alteration in the physical characteristics of the vessel, until another application for preclearance has been made and approved, or
   4. (4)Past due invoices by the representative as set out in § 401.75.
3. (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.