CFR > Title 33 - Navigation and Navigable Waters > CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY > SUBCHAPTER O—POLLUTION (parts 151 to 159) > PART 157—RULES FOR THE PROTECTION OF THE MARINE ENVIRONMENT RELATING TO TANK VESSELS CARRYING OIL IN BULK > SUBPART A—General (§157.01 to §157.07) > 157.05—Performing calculations for this part.

157.05—Performing calculations for this part.

In this part, unless the context requires otherwise:
(a) Formulas are in the International System of Units (SI);
(b) Values used in those formulas must be in the International System of Units; and
(c) Forward and after perpendiculars are located at the forward end and at the after end of the length. The forward perpendicular coincides with the foreside of the stem on the waterline on which the length of the vessel is measured.