Skip to main content
Find a Lawyer

Code of Federal Regulations Title 46. Shipping § 46.42.20–60 Deduction for superstructures and trunks

Current as of January 02, 2025 | Updated by Findlaw Staff

(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.

(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):

TABLE 42.20-60(b)(1)—PERCENTAGE OF DEDUCTION FOR TYPE “A” VESSELS

Total effective length of superstructures and trunks

0

0.1 L

0.2 L

0.3 L

0.4 L

0.5 L

0.6 L

0.7 L

0.8 L

0.9 L

1.0 L

Percentage of deduction for all types of superstructures1

0

7

14

21

31

41

52

63

75.3

87.7

100

1 Percentages at intermediate lengths of superstructures and trunks shall be obtained by linear interpolation.

TABLE 42.20-60(b)(2)—PERCENTAGE OF DEDUCTION FOR TYPE “B” VESSELS

[Percentage of deduction1]

Total effective length of superstructures and trunks

Line

0

0.1 L

0.2 L

0.3 L

0.4 L

0.5 L

0.6 L

0.7 L

0.8 L

0.9 L

1.0 L

Vessels with forecastle and without detached bridge

I

0

5

10

15

23.5

32

46

63

75.3

87.7

100

Vessels with forecastle and detached bridge

II

0

6.3

12.7

19

27.5

36

46

63

75.3

87.7

100

1 Percentages at intermediate lengths of superstructures and trunks shall be obtained by linear interpolation.

(c) For vessels of Type “B”:

(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;

(2) Where the effective length of a forecastle is more than 0.4L, the percentages shall be obtained from line II;  and,

(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:

5(0.07L—f)/0.07L

L is the length of vessel as defined in § 42.13–15(a),

f is the effective length of the forecastle.

Previous Part of Code Next Part of Code
Back to Chapter List

Cite this article: FindLaw.com - Code of Federal Regulations Title 46. Shipping § 46.42.20–60 Deduction for superstructures and trunks - last updated January 02, 2025 | https://codes.findlaw.com/cfr/title-46-shipping/cfr-sect-46-42-20-60/

FindLaw Codes may not reflect the most recent version of the law in your jurisdiction. Please verify the status of the code you are researching with the state legislature before relying on it for your legal needs.

Was this helpful?

Welcome to FindLaw's Cases & Codes

A free source of state and federal court opinions, state laws, and the United States Code. For more information about the legal concepts addressed by these cases and statutes, visit FindLaw’s Learn About the Law.

Go to Learn About the Law

Latest Blog Posts

For Legal Professionals

Learn About The Law

Get help with your legal needs

FindLaw’s Learn About the Law features thousands of informational articles to help you understand your options. And if you’re ready to hire an attorney, find one in your area who can help.

Go to Learn About the Law

Need to Find an Attorney?

Search our directory by legal issue

Enter information in one or both fields (Required)

Copied to clipboard