40Mariners
For the purposes of this Act, an individual employed to work on board a ship registered in the United Kingdom under Part II of the [1995 c. 21.] Merchant Shipping Act 1995 shall be treated as an individual who under his contract ordinarily works in the United Kingdom unless—
(a)the employment is wholly outside the United Kingdom; or
(b)the person is not ordinarily resident in the United Kingdom;
and related expressions shall be construed accordingly.