Updated to 11 December 2024 (Act No. 48 of 2024 and S.I. No. 697 of 2024)
Warning: Only amendments made since 1 January 1972 are completely recorded.
| SI Year and Number 1966 | Title | How Affected | Affecting Provision |
| 101 | Imposition of Duties (No. 158) (Matches) Order 1966 | Revoked | S.I. No. 307 of 1975, art. 2, schedule, pt. II |
| 105 | Maternity and Child Health Services (Amendment) (No. 2) Regulations 1966 | Revoked | S.I. No. 105 of 1971, regs. 3, 4 and sch. |
| 116 | Control of Imports (Quota No. 53) (Miscellaneous Brushes) Order 1966 | Revoked | S.I. No. 135 of 1975, arts. 2, 3(f) |
| Period appointed to be the next quota period under | S.I. No. 157 of 1974, art. 3, schedule, column 2 | ||
| Quantity of goods appointed to be the quota in respect of the said next quota period | S.I. No. 157 of 1974, art. 3, schedule, column 3 | ||
| 118 | Unemployment Assistance (Second Employment Period) Order 1966 | Revoked | S.I. No. 238 of 1992, regs. 3, 4(1), schedule |
| 120 | Brucellosis in Cattle (Clearance Area) (General Provisions) Order 1966 | Revoked | S.I. No. 286 of 1980, arts. 1(2), 29 |
| Art. 2 amended | S.I. No. 135 of 1973, arts. 1(3), 2(a) | ||
| Art. 16(2) substituted | S.I. No. 135 of 1973, arts. 1(3), 2(b) | ||
| Art. 16(3) amended | S.I. No. 135 of 1973, arts. 1(3), 2(c) | ||
| Art. 16(5) inserted | S.I. No. 135 of 1973, arts. 1(3), 2(d) | ||
| Art. 18 substituted | S.I. No. 135 of 1973, arts. 1(3), 2(e) | ||
| Art. 19 inserted | S.I. No. 135 of 1973, arts. 1(3), 2(f) | ||
| 125 | Secondary Teachers' Superannuation (Amendment) Scheme 1966 | Revoked with saver | S.I. No. 435 of 2009, reg. 76 |
| 127 | Road Traffic (Speed Limits) (County of Carlow) Regulations 1966 | Revoked | Road Traffic (Speed Limits) (County of Carlow) Regulations 1966 (S.I. No. 127 of 1966) |
| 128 | Circuit Court Rules 1966 | Annulled with saver | S.I. No. 510 of 2001, Schedule A |
| 130 | Harbour Rates (Dublin Port and Docks Board) (Rates for Watching Dangerous or Combustible Goods) Order 1966 | Revoked | S.I. No. 191 of 1978, arts. 1(2), 3 |
| 132 | Imposition of Duties (No. 159) (Customs Duties and Form of Customs Tariff) Order 1966 | Revoked | S.I. No. 220 of 1972, arts. 2, 38(a) |
| Sch. amended | S.I. No. 152 of 1972, arts. 2, 4(7)-4(17) | ||
| Art. 18(5)(a) amended | S.I. No. 152 of 1972, arts. 2, 4(1) | ||
| Art. 18(5)(b) amended | S.I. No. 152 of 1972, arts. 2, 4(1) | ||
| Art. 19(3) amended | S.I. No. 152 of 1972, arts. 2, 4(2) | ||
| Art. 20(2) amended | S.I. No. 152 of 1972, arts. 2, 4(3) | ||
| Art. 21(2) amended | S.I. No. 152 of 1972, arts. 2, 4(4) | ||
| Art. 22(a) amended | S.I. No. 152 of 1972, arts. 2, 4(5) | ||
| Art. 24(2) amended | S.I. No. 152 of 1972, arts. 2, 4(6) | ||
| 133 | Cork Hospitals Board (Establishment) Order 1966 | Revoked | S.I. No. 117 of 1994, art. 3 |
| Art. 5(1) substituted | S.I. No. 8 of 1973, art. 3 | ||
| Art. 5(2) substituted | S.I. No. 8 of 1973, art. 3 | ||
| 134 | Pensions Declarations Rules 1966 | Revoked | S.I. No. 171 of 2003, rls. 1(2), 7 |
| 139 | Registers of Patent Agents and Clerks Rules 1966 | Revoked | S.I. No. 180 of 1992, rls. 1(2), 17 |
| Sch. substituted | S.I. No. 285 of 1987, rls. 1(2), 2 | ||
| 143 | Fruit (Regulation of Import) Order 1966 | Ceased to have effect on repeal of enabling Act (Agricultural Products (Regulation of Import) Act 1938, 14/1938) | Animal Health and Welfare Act 2013 (15/2013), ss. 1(2), 4 and sch. 1 |
| 144 | Seeds (Regulation of Import) Order 1966 | Ceased to have effect on repeal of enabling Act (Agricultural Products (Regulation of Import) Act 1938, 14/1938) | Animal Health and Welfare Act 2013 (15/2013), ss. 1(2), 4 and sch. 1 |
| 148 | Fish (Regulation of Import) Order 1966 | Ceased to have effect on repeal of enabling Act (Agricultural Products (Regulation of Import) Act 1938, 14/1938) | Animal Health and Welfare Act 2013 (15/2013), ss. 1(2), 4 and sch. 1 |
| Art. 2 amended | S.I. No. 26 of 1973, arts. 2, 3 |