The provisions of section 313 shall apply to ships other than Indian ships, while they are within any port in India as they apply to Indian ships subject to the following modifications, namely:-

(a) [ no ship belonging to a country to which the Load Line Convention applies being an existing ship of one hundred and fifty tons gross or more or being a new ship of twenty-four metres or more in length shall be detained and no proceedings shall be taken against the owner or master thereof by virtue of the said section except after an inspection by a surveyor as provided by section 323; and]

(b) the expression "the appropriate load line " in relation to any ship other than an Indian ship shall mean-