46 C.F.R. § 92.10-15 Vertical ladders not accepted.
Title 46 - Shipping
(a) Vertical ladders and deck scuttles shall not in general be considered satisfactory as one of the required means of escape. However, where it is demonstrated that the installation of a stairway would be impracticable, a vertical ladder may be used as the second means of escape.
Title 46: Shipping
PART 92—CONSTRUCTION AND ARRANGEMENT
Subpart 92.10—Means of Escape
§ 92.10-15 Vertical ladders not accepted.