Note:
1. The following abbreviations are used in this Table:—
| 1975 | = The Social Security (Northern Ireland) Act 1975 (c. 15) |
| 1975OC | = The Industrial Injuries and Diseases (Northern Ireland Old Cases) Act 1975 (c.17) |
| 1975P | = The Social Security Pensions (Northern Ireland) Order 1975 (NI 15) |
| 1975CB | = The Child Benefit (Northern Ireland) Order 1975 (NI 16) |
| 1976 | = The Social Security and Family Allowances (Northern Ireland) Order 1976 (NI 9) |
| 1976IR | = The Industrial Relations (Northern Ireland) Order 1976 (NI 16) |
| 1977 | = The Social Security (Miscellaneous Provisions) (Northern Ireland) Order 1977 (NI 11) |
| 1977A | = The Social Security (Miscellaneous Provisions) Act 1977 (c. 5) |
| 1977SB | = The Supplementary Benefits (Northern Ireland) Order 1977 (NI 27) |
| 1979 | = The Social Security (Northern Ireland) Order 1979 (NI 5) |
| 1980 | = The Social Security (Northern Ireland) Order 1980 (NI 8) |
| 1980(2) | = The Social Security (No. 2) (Northern Ireland) Order 1980 (NI 13) |
| 1980A | = The Social Security Act 1980 (c. 30) |
| 1981C | = The Social Security (Contributions) (Northern Ireland) Order 1981 (NI 9) |
| 1981 | = The Social Security (Northern Ireland) Order 1981 (NI 25) |
| 1981MC | = The Magistrates’ Courts (Northern Ireland) Order 1981 (NI 26) |
| 1982 | = The Social Security (Northern Ireland) Order 1982 (NI 16) |
| 1982A | = The Social Security and Housing Benefits Act 1982 (c. 24) |
| 1982SR | = The Social Security (Contributions, Re-rating) Order (Northern Ireland) 1982 (SR 1982 No. 413) |
| 1983 | = The Social Security Adjudications (Northern Ireland) Order 1983 (NI 17) |
| 1984 | = The Health and Social Security (Northern Ireland) Order 1984 (NI 8) |
| 1984F | = The Fines and Penalties (Northern Ireland) Order 1984 (NI 3) |
| 1985 | = The Social Security (Northern Ireland) Order 1985 (NI 16) |
| 1985SR | = The Social Security (Contributions and Credits) (Transitional and Consequential Provisions) Regulations (Northern Ireland) 1985 (SR 1985 No. 260) |
| 1986 | = The Social Security (Northern Ireland) Order 1986 (NI 18) |
| 1986A | = The Social Security Act 1986 (c. 50) |
| 1987 | = The Social Fund (Maternity and Funeral Expenses) (Northern Ireland) Order 1987 (NI 8) |
| 1988 | = The Social Security (Northern Ireland) Order 1988 (NI 2) |
| 1988E | = The Employment and Training (Amendment) (Northern Ireland) Order 1988 (NI 10) |
| ICTA 1988 | = The Income and Corporation Taxes Act 1988 (c. 1) |
| 1989 | = The Social Security (Northern Ireland) Order 1989 (NI 13) |
| 1990 | = The Social Security (Northern Ireland) Order 1990 (NI 15) |
| 1991C | = The Social Security (Contributions) (Northern Ireland) Order 1991 (NI 22) |
| 1991D | = The Disability Living Allowance and Disability Working Allowance (Northern Ireland) Order 1991 (NI 17) |
| 1991R | = The Social Security (Contributions) (Re-rating) (No. 2) Order (Northern Ireland) 1991 (SR 1991 No. 542) |
| 1991RF | = The Redundancy Fund (Abolition) (Northern Ireland) Order 1991 (NI 2) |
| 1991SP | = The Statutory Sick Pay (Northern Ireland) Order 1991 (NI 9) |
| 1992CP | = The Social Security (Consequential Provisions) Act 1992 (c. 6) |
| 1992U | = The Social Security Benefits Up-rating Order (Northern Ireland) 1992 (SR 1992 No. 18) |
| M (followed by a number) | = The paragraph in the Memorandum under the Consolidation of Enactments (Procedure) Act 1949 |