Definition(s)
Ship of the Same Type
Ship of the same type means a ship of which hull form (expressed in the lines such as sheer plan and body plan) excluding additional hull features such as fins and of which principal particulars are identical to that of the base ship.
Source: Resolution MEPC.214(63), 2012 Guidelines on survey and certification of the Energy Efficiency Design Index (EEDI), 2 March 2012, International Maritime Organization. Regulatory Guidance