46 C.F.R. § 171.135 Weather deck drainage on a vessel of 100 gross tons or more.
Title 46 - Shipping
The weather deck must have freeing ports, open rails, and scuppers, as necessary, to allow rapid clearing of water under all weather conditions.
Title 46: Shipping
PART 171—SPECIAL RULES PERTAINING TO VESSELS CARRYING PASSENGERS
Subpart H—Drainage of Weather Decks
§ 171.135 Weather deck drainage on a vessel of 100 gross tons or more.
