Section 42 in The Inland Steam Vessels (Madhya Pradesh) Rules, 1962
42.
In measuring the clear area in steam and motor vessels, the space available shall be divided into convenient sections, each section being measured separately and the area found by multiplying the length by means of the three breadths taken at equal distances apart. The encumbrances shall then be measured and the total area of these deducted from the section. When all sections have thus been measured the sum total of the sections shall be the clear area of the space available at that part of the vessel.Note. - Permanently covered hatches and tops of casings, if properly constructed and available for passengers, may be included in the clear area space at the discretion of the Canal Officers.
