[Code of Federal Regulations]
[Title 46, Volume 7]
[Revised as of October 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 46CFR170.285]

[Page 108]
 
                           TITLE 46--SHIPPING
 
   CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED)
 
PART 170_STABILITY REQUIREMENTS FOR ALL INSPECTED VESSELS--Table of Contents
 
                         Subpart I_Free Surface
 
Sec. 170.285  Free surface correction for intact stability calculations.


    (a) When doing the intact stability calculations required by this 
subchapter, the virtual increase in the vessel's vertical center of 
gravity due to liquids in tanks must be determined by calculating--
    (1) For each type of consumable liquid, the maximum free surface 
effect of at least one transverse pair of wing tanks or a single 
centerline tank; and
    (2) The maximum free surface effect of each partially filled tank 
containing non-consumable liquids.
    (b) For the purpose of paragraph (a)(1) of this section, the tank or 
combination of tanks selected must be those having the greatest free 
surface effect.