21B.3.1 There should be adequate headroom in all
seafarer accommodation. The minimum permitted headroom in all seafarer
accommodation where full and free movement is necessary should be
not less than 203 centimetres. Some limited reduction in headroom
in any space, or part of any space, in such accommodation may be permitted,
provided this is reasonable and does not result in discomfort to the
seafarer and is agreed with the Administration.