[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: 46CFR170.185]

[Page 104-105]
 
                           TITLE 46--SHIPPING
 
   CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED)
 
PART 170_STABILITY REQUIREMENTS FOR ALL INSPECTED VESSELS--Table of Contents
 
   Subpart F_Determination of Lightweight Displacement and Centers of 
                                 Gravity
 
Sec. 170.185  Stability test preparations.

    The following preparations must be made before conducting a 
stability test:
    (a) The vessel must be as complete as practicable at the time of the 
test.
    (b) Each tank vessel must be empty and dry, except that a tank may 
be partially filled or full if the Coast Guard Marine Safety Center or 
the ABS determines that empty and dry tanks are impracticable and that 
the effect of filling or partial filling on the location of the center 
of gravity and on the displacement can be accurately determined.
    (c) All dunnage, tools, and other items extraneous to the vessel 
must be removed.
    (d) The water depth at the mooring site must provide ample clearance 
against grounding.
    (e) Each mooring line must be arranged so that it does not interfere 
with the inclination of the unit during the test.
    (f) The draft and axis of rotation selected for testing a mobile 
offshore

[[Page 105]]

drilling unit must be those that result in acceptable accuracy in 
calculating the center of gravity and displacement of the unit.
    (g) The stability test procedure required by Sec. 170.085 must 
include the following:
    (1) Identification of the vessel to be tested.
    (2) Date and location of the test.
    (3) Inclining weight data.
    (4) Pendulum locations and lengths.
    (5) Approximate draft and trim of the vessel.
    (6) Condition of each tank.
    (7) Estimated items to be installed, removed, or relocated after the 
test, including the weight and location of each item.
    (8) Schedule of events.
    (9) Person or persons responsible for conducting the test.

[CGD 79-023, 48 FR 51010, Nov. 4, 1983, as amended by CGD 88-070, 53 FR 
34537, Sept. 7, 1988; CGD 95-028, 62 FR 51218, Sept. 30, 1997]