[1] The English translation was gradually changed over several years around 2000 from Norwegian Seamen's Union.

The change came in order to emphasise NSU's international work for equal opportunities regardless of gender.

The NSU is open for all categories of seafarers from Apprentice Seafarer to Master, but mainly organize all groups of ratings both on deck and in engine, the catering personnel, and some groups of officers like the Steward and the Chief Electrician.

These international CBAs are usually covering seafarers working on ships under Flag of convenience (FOC) as defined by the ITF, or on ships in the Norwegian International Ship Register (NIS), where Norwegian law allows for non-domicile seafarers employed on local employment conditions (usually with much lower wages) of the seafarers' home country.

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