StacksVerified U.S. regulatory reference

33 CFR §156.320

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Unless otherwise specified, the maximum operating conditions in this section apply to tank vessels operating within the lightering zones designated in this subpart.
  1. (a)A tank vessel shall not attempt to moor alongside another vessel when either of the following conditions exist:
    1. (1)The wind velocity is 56 km/hr (30 knots) or more; or
    2. (2)The wave height is 3 meters (10 feet) or more.
  2. (b)Cargo transfer operations shall cease and transfer hoses shall be drained when—
    1. (1)The wind velocity exceeds 82 km/hr (44 knots); or
    2. (2)Wave heights exceed 5 meters (16 feet).