[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: 46CFR69.157]

[Page 414]
 
                           TITLE 46--SHIPPING
 
   CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED)
 
PART 69_MEASUREMENT OF VESSELS--Table of Contents
 
                    Subpart D_Dual Measurement System
 
Sec. 69.157  Definitions.

    Terms used in this subpart that are defined in Sec. 69.103 have the 
same meaning as in Sec. 69.103, except the terms listed below. As used 
in this subpart,--
    Gross tonnage is defined in Sec. 69.161(a).
    Line for fresh and tropical waters means the line described in Sec. 
69.177(b)(2).
    Line of the second deck means the line described in Sec. 69.181.
    Line of the uppermost complete deck means a longitudinal line at the 
underside of the uppermost complete deck or, if that deck is stepped, 
the longitudinal line of the underside of the lowest portion of that 
deck parallel with the upper portions of that deck.
    Net tonnage is defined in Sec. 69.161(b).
    Second deck means the next deck below the uppermost complete deck 
that meets the following:
    (a) Is continuous athwartships and in a fore-and-aft direction at 
least between peak bulkheads, even though the deck may have 
interruptions or openings due to propelling machinery spaces, to hatch 
and ventilation trunks not extending longitudinally completely between 
main transverse bulkheads, to ladder and stairway openings, to chain 
lockers, or to cofferdams.
    (b) Is fitted as an integral and permanent part of the vessel.
    (c) Has proper covers to all main hatchways.
    (d) Does not have steps the total of which exceed 48 inches in 
height.
    Tonnage deck means, for a vessel with only one deck, the uppermost 
complete deck and, for a vessel with a second deck, the second deck.
    Tonnage mark means the line described in Sec. 69.177(a)(2).