# 46 CFR § 69.63 - Net tonnage ITC.

§ 69.63 Net tonnage ITC.

Net tonnage ITC (NT ITC) is determined by the formula:

$\begin{array}{c}\mathrm{NT}\phantom{\rule{0ex}{0ex}}\mathrm{ITC}={K}_{2}{V}_{c}{\left(\frac{4d}{3D}\right)}^{2}+{K}_{3}\left({N}_{1}+\frac{{N}_{2}}{10}\right)\\ \text{in which:}\\ \mathrm{Vc}=\text{total volume of cargo spaces in cubic meters.}\\ {K}_{2}=0.2+0.02\phantom{\rule{0ex}{0ex}}{\mathrm{log}}_{10}{V}_{c}\\ {K}_{3}=1.25\left(\frac{\mathrm{GT}\phantom{\rule{0ex}{0ex}}\mathrm{ITC}+10.000}{10.000}\right)\\ D=\begin{array}{c}\text{molded depth amid ships in meters, as "molded depth" is}\\ \text{defined in § 69.53}\end{array}\\ d=\begin{array}{c}\text{molded draft amid ships in meters, as "molded draft" is}\\ \text{defined in § 69.53}\end{array}\\ {N}_{1}=\begin{array}{c}\text{number of passengers in cabins with not more than eight}\\ \text{berths, as "passenger" is defined in § 69.53}\end{array}\\ {N}_{2}=\begin{array}{c}\text{number of other passengers, as "passenger" is defined in}\\ \text{§ 69.53}\end{array}\\ \text{GT ITC}=\text{gross tonnage ITC as determined under § 69.57}\\ \begin{array}{c}{N}_{1}\phantom{\rule{0ex}{0ex}}\text{and}\phantom{\rule{0ex}{0ex}}{N}_{2}\phantom{\rule{0ex}{0ex}}\text{must equal the total number of passengers the vessel}\\ \text{is permitted to carry as indicated on the ship's Passenger}\\ \text{Certificate. If}\phantom{\rule{0ex}{0ex}}{N}_{1}\text{plus}\phantom{\rule{0ex}{0ex}}{N}_{2}\phantom{\rule{0ex}{0ex}}\text{is less than 13, both}\phantom{\rule{0ex}{0ex}}{N}_{1}\text{and}{\phantom{\rule{0ex}{0ex}}N}_{2}\phantom{\rule{0ex}{0ex}}\text{are zero.}\end{array}\\ {\left(\frac{4d}{3D}\right)}^{2}\phantom{\rule{0ex}{0ex}}\text{must not be greater than unity}\\ {K}_{2}{V}_{c}{\left(\frac{4d}{3D}\right)}^{2}\phantom{\rule{0ex}{0ex}}\text{must not be less than 0.25 GT ITC.}\\ \text{NT ITC must not be less than 0.30 GT ITC.}\end{array}$

[USCG-2011-0522, 81 FR 18721, Mar. 31, 2016]