{"data":{"id":"us/46-cfr-174.335","jurisdiction":"us","citation":"46 CFR 174.335","heading":"Watertight doors.","body":"(a) Each hopper dredge must have sliding watertight doors (Class 3) approved under § 170.270 of this chapter if the sill for the door is—\n(1) Installed below the bulkhead deck; and\n(2) Less than 24 inches above the final waterline as shown by the calculations required by § 174.310 in each damage condition up to and including the maximum amount of assumed damage.\n(b) Each hopper dredge must have sliding watertight doors (Class 3) approved under § 170.270 of this chapter, or quick acting hinged watertight doors (Class 1) approved under the same subpart if the sill of the watertight door is—\n(1) Installed below the bulkhead deck; and\n(2) Greater than 24 inches above the final waterline as shown by the calculations required by § 174.310 in each damage condition up to and including the maximum amount of assumed damage.","path":["Title 46—Shipping","CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY","SUBCHAPTER S—SUBDIVISION AND STABILITY","PART 174—SPECIAL RULES PERTAINING TO SPECIFIC VESSEL TYPES","Subpart I—Hopper Dredges With Working Freeboard Assignments"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-46.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:22Z","sha256":"c9d597ab15c3e05bfba4d9941dd68bc51682345082e7a78139de5b8cfe0df3b5","source_id":"us-cfr","stale":true,"prev":"us/46-cfr-174.330","next":"us/46-cfr-174.340"},"notice":"GroundRules: Original legal text. Not legal advice."}