(1) Subject to this section and to section 47, this Act applies to -

(a) employees employed in employment which is insurable for all benefits under the Social Welfare Consolidation Act 2005,

(b) employees who were so employed in such employment in the period of four years ending on the date of termination of employment, and

(c) employees who have attained the age of 66 years and are in employment that would be insurable for all benefits under the Social Welfare Consolidation Act 2005 but for -

(i) their attainment of that age, or

(ii) the fact that the employment concerned is excepted employment by reason of paragraph 2, 4 or 5 of Part 2 of Schedule 1 to that Act.

(2) This Act shall apply to an employee employed in employment which would be insurable for all benefits under the Social Welfare (Consolidation) Act 1993 but for the fact that the employment concerned is an excepted employment by virtue of paragraph 2, 4 or 5 of Part II of the First Schedule to that Act.

(3)