[Code of Federal Regulations]
[Title 46, Volume 2]
[Revised as of October 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 46CFR45.61]

[Page 79]
 
                           TITLE 46--SHIPPING
 
   CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED)
 
PART 45_GREAT LAKES LOAD LINES--Table of Contents
 
                          Subpart C_Freeboards
 
Sec. 45.61  Correction for superstructures and trunks.

    (a) Where the effective length E of superstructures and trunks that 
meet the requirements of subpart D of this part is 1.0L, the minimum 
summer freeboard may be corrected by subtracting \1/2\Hs.
    (b) Where the effective length of superstructures and trunks is less 
than 1.0L the minimum summer freeboard may be corrected by subtracting a 
percentage of one-half of the standard superstructure height (Hs) 
determined by the formula:

Percentage=(E/2L) (1+E/L)x100

    (c) To be eligible for the correction a trunk must--
    (1) Be at least as strong and as stiff as a superstructure;
    (2) Have no opening in the freeboard deck in way of the trunk, 
except small access openings;
    (3) Have hatchway coamings and covers that meet Sec. Sec. 45.143 
through 45.147;
    (4) Provide a permanent working platform fore and aft with 
guardrails;
    (5) Provide fore and aft access between detached trunks and 
superstructures by permanent gangways;
    (6) Be at least 60 percent of the breadth of the ship in way of the 
trunk; and
    (7) Be at least 0.6 L in length, if no superstructure, is provided.