2U.K.The following abbreviations are used in the Table:—
Acts of Parliament
| 1973 | = Social Security Act 1973 (c. 38) |
| 1975 | = Social Security Act 1975 (c. 14) |
| 1975P | = Social Security Pensions Act 1975 (c. 60) |
| 1977 | = Social Security (Miscellaneous Provisions) Act 1977 (c. 5) |
| 1978 | = Employment Protection (Consolidation) Act 1978 (c. 44) |
| 1980 | = Social Security Act 1980 (c. 30) |
| 1982 | = Social Security and Housing Benefits Act 1982 (c. 24) |
| 1984 | = Health and Social Security Act 1984 (c. 48) |
| 1985 | = Social Security Act 1985 (c. 53) |
| 1986 | = Social Security Act 1986 (c. 50) |
| 1989 | = Social Security Act 1989 (c. 24) |
| 1990 | = Social Security Act 1990 (c. 27) |
| 1992 | = Social Security (Consequential Provisions) Act 1992 (c. 6) |
| 1993 | = Social Security Act 1993 (c. 3) |
Subordinate legislation
| S.I. 1987/1116 | = Personal and Occupational Pension Schemes (Modification of Enactments) Regulations 1987 |
