By virtue of article 69(7) of the Social Security Pensions (Northern Ireland) Order 1975 (c.15), sections 69 and 69A of that Order have effect as if they were contained in Part 1 of the Pensions (Increase) Act (Northern Ireland) 1971 (c.35(NI)). Consequently, for the purposes of section 33 of the Interpretation Act (Northern Ireland) 1954 (c. 33)(NI) the following expressions used in this Order have the meaning which they bear in section 69 of the Social Security Pensions (Northern Ireland) Order 1975 and the Pensions (Increase) Act (Northern Ireland) 1971: “beginning date”, “derivative pension”, “employment”, “guaranteed minimum pension”, “official pension”, “pension authority”, “qualifying condition”, “relevant injury pension”, “substituted pension” and “transfer credit”. Section 8(2) of the Pensions (Increase) Act (Northern Ireland) 1971 also makes provision about when a pension begins for the purposes of that Act. Section 8(2) was amended by section 3(5) of the Pensions (Miscellaneous Provisions) (Northern Ireland) Order 1990 (N.I. 13) and by the Welfare Reform and Pensions (Northern Ireland) Order 1999 (N.I. 11), section 36(1) and (3)(b)&(c). Section 8 was also amended by the Public Service Pensions Act (Northern Ireland) 2014 (c.2), Schedule 8, paragraph 2 (which inserted section 8A).