46 C.F.R. § 167.20-10 Means of escape.
Title 46 - Shipping
(a) On all nautical school ships where the arrangements will possibly permit, all inclosures where persons may be quartered, or where anyone may be employed, shall be provided with not less than two avenues of escape, so located that if one of such avenues is not available another may be.
Title 46: Shipping
PART 167—PUBLIC NAUTICAL SCHOOL SHIPS
Subpart 167.20—Hull Requirements, Construction and Arrangement of Nautical School Ships
§ 167.20-10 Means of escape.

