46 C.F.R. § 108.151 Two means required.
Title 46 - Shipping
(a) Each of the following must have at least 2 means of escape: (1) Each accommodation space with a deck area of at least 27 sq. meters (300 sq. ft.). (2) Each space, other than an accommodation space, that is continuously manned or used on a regular working basis except for routine security checks. (3) Weather deck areas where personnel may be normally employed. (b) When two means of escape are required from a space below the main deck, one the means of escape must provide for a rapid escape through openings that are not required to be watertight by damage stability considerations. (c) When two means of escape are required from a space above the main deck, one of the means of escape must provide for a rapid escape to a weather deck.
Title 46: Shipping
PART 108—DESIGN AND EQUIPMENT
Subpart B—Construction and Arrangement
Means of Escape
§ 108.151 Two means required.

