58.— (1) Subject to subsection (2) this Chapter applies to—

( a) Irish ships to which Chapter 1 of the Annex to the Safety Convention applies,

( b) other Irish sea-going ships of 100 gross tonnage or more, and

( c) any other ship while in any port in the State unless it would not have been in such port but for stress of weather or any other circumstance that neither the master nor the owner of the ship could have prevented or forestalled.

(2) This Chapter does not apply to—

( a) ships of war, troopships, fishing vessels under 24 metres in length, and

( b) pleasure yachts not engaged in trade.