{"data":{"id":"us/46-cfr-42.20-60","jurisdiction":"us","citation":"46 CFR 42.20-60","heading":"-60 Deduction for superstructures and trunks.","body":"(a) Where the effective length of superstructures and trunks is 1.0L, the deduction from the freeboard shall be 14 inches at 79 feet length of vessel, 34 inches at 279 feet length, and 42 inches at 400 feet length and above; deductions at intermediate lengths shall be obtained by linear interpolation.\n(b) Where the total effective length of superstructures and trunks is less than 1.0L the deduction shall be a percentage obtained from table 42.20-60(b)(1) or table 42.20-60(b)(2):\nTable 42.20-60(b)(1)—Percentage of Deduction For Type “A” Vessels\nTotal effective length of superstructures and trunks\n0 0.1L 0.2L 0.3L 0.4L 0.5L 0.6L 0.7L 0.8L 0.9L 1.0L\nPercentage of deduction for all types of superstructures 1 0 7 14 21 31 41 52 63 75.3 87.7 100\n1 Percentages at intermediate lengths of superstructures and trunks shall be obtained by linear interpolation.\nTable 42.20-60(b)(2)—Percentage of Deduction for Type “B” Vessels\n[Percentage of deduction 1]\nTotal effective length of superstructures and trunks\nLine 0 0.1L 0.2L 0.3L 0.4L 0.5L 0.6L 0.7L 0.8L 0.9L 1.0L\nVessels with forecastle and without detached bridge I 0 5 10 15 23.5 32 46 63 75.3 87.7 100\nVessels with forecastle and detached bridge II 0 6.3 12.7 19 27.5 36 46 63 75.3 87.7 100\n1 Percentages at intermediate lengths of superstructures and trunks shall be obtained by linear interpolation.\n(c) For vessels of Type “B”:\n(1) Where the effective length of a bridge is less than 0.2L, the percentages shall be obtained by linear interpolation between lines I and II;\n(2) Where the effective length of a forecastle is more than 0.4L, the percentages shall be obtained from line II; and,\n(3) Where the effective length of a forecastle is less than 0.07L, the percentages in table 42.20-60(b)(2) of this paragraph shall be reduced by:\n5(0.07L−f)/0.07L\nL is the length of vessel as defined in § 42.13-15(a),\nf is the effective length of the forecastle.","path":["Title 46—Shipping","CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY","SUBCHAPTER E—LOAD LINES","PART 42—DOMESTIC AND FOREIGN VOYAGES BY SEA","Subpart 42.20—Freeboards"],"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":"6123d4375bf444acf59cb81535d6a4bcc9c5c0e175ef1993b048c3442abea6d1","source_id":"us-cfr","stale":true,"prev":"us/46-cfr-42.20-55","next":"us/46-cfr-42.20-65"},"notice":"GroundRules: Original legal text. Not legal advice."}