U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 28, 2025
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All TitlesTitle 46Chapter IPart 42Subpart 42.15 - Subpart 42.15—Conditions of Assignment of Freeboard
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(a) For the purpose of this part two positions of hatchways, doorways and ventilators are defined as follows:
(1) Position 1: Upon exposed freeboard and raised quarter decks, and upon exposed superstructure decks situated forward of a point located a quarter of the vessel's length from the forward perpendicular.
(2) Position 2: Upon exposed superstructure decks situated abaft a quarter of the vessel's length from the forward perpendicular.