Paragraph 5 I1

official number F1...,

IMO number,

port letters and F2port number,

name,

radio call sign,

whether full or simple registration,

material used to construct hull,

name of builder,

year of build,

place and country of build,

date of entry into service,

overall length-metric units,

registered length-metric units,

breadth-metric units,

depth-metric units,

gross tonnage,

net tonnage,

maximum continuous engine power in kilowatts, or, if the owner notifies the Registrar of a modification, permanently de-rated engine power in kilowatts,

make and model of engine.

number of cylinders,

number of engines,

number of revolutions per minute,

modification explanation.