It applies to all seafarers that is all persons employed or engaged or working in any capacity on board a ship to which the Convention applies. This includes not just crew navigating or operating the ship but also hotel personnel. In cases where it is unclear if a group of workers are considered seafarers the national competent authority must decide after consult in the social partners concerned. Resolution VII of the International Labour Conference 2006 concerns information on occupational groups to provide guidance on factors to consider making such determinations.