Section 179.210 - Collision bulkhead(a) A vessel of more than 19.8 meters (65 feet) in length must have a collision bulkhead.(b) A vessel of not more than 19.8 meters (65 feet) in length must have a collision bulkhead if it: (1) Carries more than 49 passengers;(2) Operates on exposed waters;(3) Is of more than 12.2 meters (40 feet) in length and operates on partially protected waters; or(4) Is constructed of wood on or after March 11, 2001, and operates in cold water.(c) A double-ended ferry required to have a collision bulkhead must have a collision bulkhead at each end of the vessel.