3.1 The probabilistic methodology for hypothetical
oil outflow applies to tankers of 5,000 DWT and above only, and does
not have an outflow criterion for the smaller vessels. In this case,
tank size is governed by the 700 m3 tank size limitation
required by paragraph 6.2 of regulation
19 of the revised MARPOL Annex I and the maximum tank length
specified in paragraph 3.2.