For the purposes of this Part and section 1 of the Equal Pay Act 1970 (“the relevant purposes”), employment is to be regarded as being at an establishment in Great Britain if—
This subsection applies if—
The reference to “employment” in subsection (1) includes—
In the case of employment on board a ship registered at a port of registry in Great Britain (except where the employee does his work wholly outside Great Britain and subsection (1A) does not apply) the ship shall for the relevant purposes be deemed to be the establishment.
Where work is not done at an establishment it shall be treated for the relevant purposes as done at the establishment from which it is done or (where it is not done from any establishment) at the establishment with which it has the closest connection.
In relation to employment concerned with exploration of the sea bed or subsoil or the exploitation of their natural resources, Her Majesty may by Order in Council provide that subsections (1) and (3) shall have effect as if—
included any area for the time being designated under section 1(7) of the Continental Shelf Act 1964, except an area or part of an area in which the law of Northern Ireland applies.
An Order in Council under subsection (5) may provide that, in relation to employment to which the Order applies, this Part and section 1 of the Equal Pay Act 1970 are to have effect with such modifications as are specified in the Order.
An Order in Council under subsection (5) shall be of no effect unless a draft of the Order was laid before and approved by each House of Parliament.
Subsections (1) to (4) or, where an Order in Council under subsection (5) is in force, those subsections as modified by the Order, apply for the purposes of determining whether contract work, within the meaning given by section 9, is at an establishment in Great Britain, but so apply with the following modifications—