| British Telecommunications Act 1981 | 1981 c. 38 | Act | repealed (Isle of Man) | Statute Law (Repeals) Act 2004 | 2004 c. 14 | Sch. 1 Pt. 17 Group 11(5) | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | s. 58(1)-(3) | repealed | Postal Services Act 2000 | 2000 c. 26 | Sch. 9 | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | s. 58(5) 62 | | The Postal Services Act 2000 (Consequential Modifications No. 1) Order 2001 | 2001 No. 1149 | Sch. 2 | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | s. 59 | amended | The Postal Services Regulations 1999 | 1999 No. 2107 | reg. 4(1) | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | s. 59-61 | repealed | Postal Services Act 2000 | 2000 c. 26 | Sch. 9 | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | s. 60 | | The Postal Services Act 2000 (Commencement No. 4 and Transitional and Saving Provisions) Order 2001 | 2001 No. 1148 | art. 19 | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | s. 63-69 | repealed | Postal Services Act 2000 | 2000 c. 26 | Sch. 9 | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | s. 66 | excluded | The Visiting Forces and International Headquarters (Application of Law) Order 1999 | 1999 No. 1736 | art. 7(3) | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | s. 66 | amended | The Postal Services Regulations 1999 | 1999 No. 2107 | reg. 5(1) | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | s. 66(1) | suspended (as to qualified mail) | The Postal Privilege (Suspension) Order 1999 | 1999 No. 1933 | art. 2(1)(2) | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | s. 66(2)-(4) | | The Postal Services Act 2000 (Commencement No. 4 and Transitional and Saving Provisions) Order 2001 | 2001 No. 1148 | art. 21 | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | s. 68(4)(7) | | The Postal Services Act 2000 (Commencement No. 4 and Transitional and Saving Provisions) Order 2001 | 2001 No. 1148 | art. 22 | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | s. 70 77 | | The Postal Services Act 2000 (Consequential Modifications No. 1) Order 2001 | 2001 No. 1149 | Sch. 2 | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | s. 71-76 | repealed | Postal Services Act 2000 | 2000 c. 26 | Sch. 9 | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | s. 73 | | Postal Services Act 2000 | 2000 c. 26 | s. 115(5) | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | s. 73(1)(a)s. 73(2)(b) | | Postal Services Act 2000 | 2000 c. 26 | s. 115(5) | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | s. 74(2) | | Postal Services Act 2000 | 2000 c. 26 | s. 115(6) | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | s. 74(2) | | Postal Services Act 2000 | 2000 c. 26 | s. 115(6)(b)(c) | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | s. 74(2)(ia) | | Postal Services Act 2000 | 2000 c. 26 | s. 115(6)(a) | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | s. 74(4)(4A) | | Postal Services Act 2000 | 2000 c. 26 | s. 115(7) | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | s. 75(2)-(8) | | The Postal Services Act 2000 (Commencement No. 4 and Transitional and Saving Provisions) Order 2001 | 2001 No. 1148 | art. 23(1) | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | s. 81 | | The Postal Services Act 2000 (Commencement No. 4 and Transitional and Saving Provisions) Order 2001 | 2001 No. 1148 | art. 24 | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | s. 85(2) | words substituted | The Companies Act 2006 (Consequential Amendments, Transitional Provisions and Savings) Order 2009 | 2009 No. 1941 | Sch. 1 para. 47 | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | s. 88(1) | words repealed | Communications Act 2003 | 2003 c. 21 | Sch. 19(1) Note 1 | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | s. 88(2) | words repealed | Communications Act 2003 | 2003 c. 21 | Sch. 19(1) Note 1 | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | Sch. 2 para. 1(3) | words substituted | Abolition of Feudal Tenure etc. (Scotland) Act 2000 | 2000 asp 5 | Sch. 12 para. 43 | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | Sch. 2 | | The Postal Services Act 2000 (Commencement No. 4 and Transitional and Saving Provisions) Order 2001 | 2001 No. 1148 | art. 20(1) | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | Sch. 3 para. 10(2)(d) | repealed | Planning (Consequential Provisions) (Scotland) Act 1997 | 1997 c. 11 | s. 3 Sch. 1 Pt. 1 | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | Sch. 3 para. 51(1)(3) | repealed | Postal Services Act 2000 | 2000 c. 26 | Sch. 9 | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | Sch. 3 para. 51(5)(6) | | The Postal Services Act 2000 (Consequential Modifications No. 1) Order 2001 | 2001 No. 1149 | Sch. 2 | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | Sch. 3 para. 51(7)(b) | | The Postal Services Act 2000 (Consequential Modifications No. 1) Order 2001 | 2001 No. 1149 | Sch. 2 | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | Sch. 3 para. 51(7) | repealed | The Postal Services Act 2000 (Consequential Modifications) Order 2003 | 2003 No. 2908 | Sch. 2 | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | Sch. 4 para. 2-18 | repealed | Communications Act 2003 | 2003 c. 21 | Sch. 19(1) Note 1 | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | Sch. 4 para. 21 | repealed | Communications Act 2003 | 2003 c. 21 | Sch. 19(1) Note 1 | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | Sch. 4 para. 22 | repealed | Communications Act 2003 | 2003 c. 21 | Sch. 19(1) Note 1 | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | Sch. 5 para. 1 | repealed | Communications Act 2003 | 2003 c. 21 | Sch. 19(1) Note 1 | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | Sch. 5 para. 3-22 | repealed | Communications Act 2003 | 2003 c. 21 | Sch. 19(1) Note 1 | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | specified amended provision(s) | Commencement Order | The Postal Services Act 2000 (Commencement No. 1 and Transitional Provisions) Order 2000 | 2000 No. 2957 | art. 2 Sch. 1-3 | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | specified amended provision(s) | Commencement Order | The Postal Services Act 2000 (Commencement No. 4 and Transitional and Saving Provisions) Order 2001 | 2001 No. 1148 | art. 2 | Yes | |
| British Telecommunications Act 1981 | 1981 c. 38 | specified amended provision(s) | Commencement Order | The Abolition of Feudal Tenure etc. (Scotland) Act 2000 (Commencement No. 2) (Appointed Day) Order 2003 | 2003 No. 456 | art. 2 | Yes |   commencement order for 2000 asp 5 |
| British Telecommunications Act 1981 | 1981 c. 38 | specified amended provision(s) | Commencement Order | The Communications Act 2003 (Commencement No. 1) Order 2003 | 2003 No. 1900 | art. 2 Sch. 1 2 | Yes |   commencement order for 2003 c. 21 |
| British Telecommunications Act 1981 | 1981 c. 38 | specified amended provision(s) | Commencement Order | The Office of Communications Act 2002 (Commencement No. 3) and Communications Act 2003 (Commencement No. 2) Order 2003 | 2003 No. 3142 | art. 2-4 Sch. 1 2 | Yes |   commencement order for 2003 c. 21 |