(1) Subject to subsection (2), whenever a change is made or occurs in any of the particulars of the statement furnished by an employer under section 3, 4 or 6, the employer shall notify the employee in writing of the nature and date of the change as soon as may be thereafter, but not later than -

(a) the day on which the change takes effect, or

(b) where the change is consequent on the employee being required to work outside the State for a period of more than 1 month, the time of the employee's departure.

(2) Subsection (1) does not apply in relation to a change occurring in provisions of statutes or instruments made under statute, other than a registered employment agreement or employment regulation order, or of any other laws or of any administrative provisions or collective agreements referred to in the statement given under section 3 or 4.