| Number and Year in S.I. Series | Title |
| No. 1 of 1991 | European Communities (General System for the Recognition of Higher Education Diplomas) Regulations 1991 |
| No. 4 of 1991 | European Communities (Good Laboratory Practice) Regulations 1991 |
| No. 5 of 1991 | European Communities (Non-Life Insurance) (Amendment) Regulations 1991 |
| No. 11 of 1991 | European Communities (Marketing of Feedingstuffs) (Amendment) Regulations 1991 |
| No. 12 of 1991 | European Communities (Self-Propelled Industrial Trucks) Regulations 1991 |
| No. 18 of 1991 | European Communities (Stock Exchange) (Amendment) Regulations 1991 |
| No. 29 of 1991 | European Communities (Surveillance of Certain Textile Products Imports) Regulations 1991 |
| No. 34 of 1991 | European Communities (Road Traffic) (Vehicle Type Approval) Regulations 1991 |
| No. 41 of 1991 | European Communities (Electrically, Hydraulically or Oil-Electrically Operated Lifts) Regulations 1991 |
| No. 43 of 1991 | European Communities (Ionising Radiation) Regulations 1991 |
| No. 52 of 1991 | European Communities (Trade with Iraq and Kuwait) Regulations 1991 |
| No. 53 of 1991 | European Communities (Sharing of Passenger Capacity and Access to Scheduled Air Service Routes) Regulations 1991 |
| No. 54 of 1991 | European Communities (Scheduled Air Fares) Regulations 1991 |
| No. 57 of 1991 | European Communities (Customs and Excise) Regulations 1991 |
| No. 59 of 1991 | European Communities (Road Passenger Transport) Regulations 1991 |
| No. 60 of 1991 | European Communities (Merchandise Road Transport) Regulations 1991 |
| No. 88 of 1991 | European Communities (Classification, Packaging and Labelling of Pesticides) (Amendment) Regulations 1991 |
| No. 100 of 1991 | European Communities (Trade with Iraq and Kuwait) (No. 2) Regulations 1991 |
| No. 106 of 1991 | European Communities (Surveillance of Imports of Certain Iron and Steel Products) Regulations 1991 |
| No. 107 of 1991 | European Communities (Vegetable Seeds) (Amendment) Regulations 1991 |
| No. 108 of 1991 | European Communities (Beet Seed) (Amendment) Regulations 1991 |
| No. 109 of 1991 | European Communities (Seed of Oil Plants and Fibre Plants) (Amendment) Regulations 1991 |
| No. 110 of 1991 | European Communities (Seed of Fodder Plants) (Amendment) (No. 2) Regulations 1991 |
| No. 111 of 1991 | European Communities (Statistical Confidentiality) Regulations 1991 |
| No. 115 of 1991 | European Communities (Simple Pressure Vessels) Regulations 1991 |
| No. 124 of 1991 | European Communities (Additives in Feedingstuffs) (Amendment) Regulations 1991 |
| No. 142 of 1991 | European Communities (Non-Life Insurance) (Amendment) (No. 2) Regulations 1991 |
| No. 152 of 1991 | European Communities (Paints, etc.) (Classification, Packaging and Labelling) (Amendment) Regulations 1991 |
| No. 174 of 1991 | European Communities (Customs and Excise) (Amendment) Regulations 1991 |
| No. 179 of 1991 | European Communities (Seed of Fodder Plants) (Amendment) Regulations 1991 |
| No. 183 of 1991 | European Communities (Use of Sewage Sludge In Agriculture) Regulations 1991 |
| No. 186 of 1991 | European Communities (Motor Vehicles Type Approval) Regulations 1991 |
| No. 197 of 1991 | European Communities (Non-Life Insurance) (Legal Expenses) Regulations 1991 |
| No. 198 of 1991 | European Communities (Control of Oestrogenic, Androgenic, Gestagenic and Thyrostatic Substances) (Amendment) Regulations 1991 |
| No. 223 of 1991 | European Communities (Beef Carcase Classification) (Amendment) Regulations 1991 |
| No. 227 of 1991 | European Communities (Retirement of Farmers) Regulations 1991 |
| No. 228 of 1991 | European Communities (Labelling, Presentation and Advertising of Foodstuffs) (Amendment) Regulations 1991 |
| No. 241 of 1991 | European Communities (Feeding Stuffs) (Tolerances of Undesirable Substances and Products) (Amendment) Regulations 1991 |
| No. 251 of 1991 | European Communities (Television Broadcasting) Regulations 1991 |
| No. 265 of 1991 | European Communities (Food Imitations) (Safety) Regulations 1991 |
| No. 275 of 1991 | European Communities (Transit of Electricity) Regulations 1991 |
| No. 282 of 1991 | European Communities (Sampling and Analysis of Fertilisers) Regulations 1991 |
| No. 284 of 1991 | European Communities (Marketing of Fertilisers) Regulations 1991 |
| No. 293 of 1991 | European Communities (Egg Products) Regulations 1991 |
| No. 307 of 1991 | European Communities (Material and Articles intended to come into Contact with Foodstuffs) Regulations 1991 |
| No. 318 of 1991 | European Communities (Protection of Topographies of Semiconductor Products) (Amendment) Regulations 1991 |
| No. 319 of 1991 | European Communities (Fruit Jams, Jellies and Marmalades and Chestnut Puree) (Amendment) Regulations 1991 |
| No. 327 of 1991 | European Communities (Tar Yield of Cigarettes) Regulations 1991 |
| No. 330 of 1991 | European Communities (Recognition of Qualifications in Pharmacy) Regulations 1991 |
| No. 333 of 1991 | European Communities (Health Act 1947, Amendment of Sections 54 and 61) Regulations 1991 |
| No. 334 of 1991 | European Communities (Extraction Solvents in Foodstuffs) Regulations 1991 |
| No. 343 of 1991 | European Communities (Transit of Natural Gas) Regulations 1991 |
| No. 345 of 1991 | European Communities (Additives in Feedingstuffs) (Amendment) (No. 2) Regulations 1991 |
| No. 352 of 1991 | European Communities (Cosmetic Products) (Amendment) Regulations,1991 |
| No. 356 of 1991 | European Communities (Vehicle Testing) Regulations 1991 |
| No. 367 of 1991 | European Communities (Motor Vehicles Type Approval) (No. 2) Regulations 1991 |
| No. 368 of 1991 | European Communities (Customs and Excise) (Amendment) (No. 2) Regulations 1991 |