Ocean-going vessel classification: transhippers regarded as ocean-going when designed and equipped to travel on the open sea. The note treats ocean-going vessel as defined by design and equipment to operate on the open sea and holds that transhippers, being designed and equipped to carry cargo to and from the high seas and often entering open waters, fall within that category; administrative practice and a government notification expanding the ambit to include all vessels, including transhippers, corroborate this inclusive classification.