the Contracting-out (Recovery of Class 1 Contributions) Regulations (Northern Ireland) 198255;

regulations 2(c), 5(a) and 10(2), (6) and (10) of the Social Security (Contributions) (Amendment) Regulations (Northern Ireland) 199256;

regulation 3(10) of the Social Security (Contributions) (Amendment No. 6) Regulations (Northern Ireland) 199257;

regulations 4(3)(b) and 5(3)(b) of the Social Security (Miscellaneous Provisions) (Amendment No. 3) Regulations (Northern Ireland) 199258;

regulation 7(4)(c) of the Social Security (Contributions) (Amendment No. 5) Regulations (Northern Ireland) 199659;

the Social Security (Contributions) (Amendment No. 4) Regulations (Northern Ireland) 199860;

regulation 2(a), (b) and (d) of the Social Security (Contributions) (Amendment No. 5) Regulations (Northern Ireland) 199861.