| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | Pt. 3 heading | words inserted | The Climate Change Levy (General) (Amendment) Regulations 2012 | 2012 No. 943 | reg. 8 | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | Pt. 4A | inserted | The Climate Change Levy (General) (Amendment) Regulations 2003 | 2003 No. 604 | reg. 19 | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | Pt. 3 heading | word omitted | The Climate Change Levy (General) (Amendment) Regulations 2007 | 2007 No. 2903 | Sch. 1 Table Item 9 | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | Pt. 3 title | words omitted | Finance Act 2014 | 2014 c. 26 | Sch. 20 para. 8(7) | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 1 | coming into force | The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 1 | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 2 | coming into force | The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 1 | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 2(1) | words substituted | The Climate Change Levy (General) (Amendment) Regulations 2003 | 2003 No. 604 | reg. 3 | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 2(1) | words omitted | The Climate Change Levy (General) (Amendment) Regulations 2003 | 2003 No. 604 | reg. 3 | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 2(1) | words inserted | The Climate Change Levy (Miscellaneous Amendments) Regulations 2005 | 2005 No. 1716 | reg. 2 | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 2(1) | words omitted | The Climate Change Levy (General) (Amendment) Regulations 2007 | 2007 No. 2903 | Sch. 1 Table Item 1 | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 2(1) | words inserted | The Climate Change Levy (General) (Amendment) Regulations 2012 | 2012 No. 943 | reg. 3(a) | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 2(1) | words inserted | The Climate Change Levy (General) (Amendment) Regulations 2012 | 2012 No. 943 | reg. 3(b) | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 2(1) | words inserted | The Climate Change Levy (General) (Amendment) Regulations 2012 | 2012 No. 943 | reg. 3(c) | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 2(1) | words omitted | Finance Act 2014 | 2014 c. 26 | Sch. 20 para. 8(2) | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 3 | coming into force | The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 1 | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 4 | coming into force | The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 1 | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 5 | coming into force | The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 1 | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 5(1)(b) | words substituted | The Climate Change Levy (General) (Amendment) Regulations 2003 | 2003 No. 604 | reg. 4 | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 5(1)(b) | word substituted | The Climate Change Levy (Miscellaneous Amendments) Regulations 2005 | 2005 No. 1716 | reg. 3 | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 5(1)(b) | words substituted | The Climate Change Levy (General) (Amendment) Regulations 2007 | 2007 No. 2903 | Sch. 1 Table Item 2 | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 6 | coming into force | The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 1 | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 6A-6G | inserted | The Climate Change Levy (General) (Amendment) Regulations 2002 | 2002 No. 1152 | reg. 2 | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 6A | words substituted | The Climate Change Levy (General) (Amendment) Regulations 2003 | 2003 No. 604 | reg. 5 | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 6D(2)(a) | words substituted | The Climate Change Levy (General) (Amendment) Regulations 2003 | 2003 No. 604 | reg. 6 | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 6E(1)(d) | words inserted | The Climate Change Levy (General) (Amendment) Regulations 2003 | 2003 No. 604 | reg. 7 | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 6E(1)(e) | words substituted | The Climate Change Levy (General) (Amendment) Regulations 2003 | 2003 No. 604 | reg. 6 | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 7 | coming into force | The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 1 | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 8 | coming into force | The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 1 | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 8(c)(ii) | words omitted | The Climate Change Levy (General) (Amendment) Regulations 2007 | 2007 No. 2903 | Sch. 1 Table Item 3 | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 8(c)(ii) | words inserted | The Climate Change Levy (General) (Amendment) Regulations 2012 | 2012 No. 943 | reg. 4 | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 8(c)(ii) | words omitted | Finance Act 2014 | 2014 c. 26 | Sch. 20 para. 8(3) | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 8(ca) | inserted | The Climate Change Levy (General) (Amendment) Regulations 2003 | 2003 No. 604 | reg. 8 | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 8(g) | words substituted | The Climate Change Levy (General) (Amendment) Regulations 2003 | 2003 No. 604 | reg. 4 | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 9 | coming into force | The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 1 | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 10 | coming into force | The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 1 | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 11 | coming into force | The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 1 | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 11(1)(ba)(bc) | inserted | The Climate Change Levy (General) (Amendment) Regulations 2013 | 2013 No. 713 | reg. 3(a) | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 11(1)(bb) | words inserted | The Climate Change Levy (General) (Amendment) Regulations 2015 | 2015 No. 947 | reg. 3(a) | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 11(1)(c) | word substituted | The Climate Change Levy (General) (Amendment) Regulations 2007 | 2007 No. 2903 | Sch. 1 Table Item 4 | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 11(1)(c) | words omitted | The Climate Change Levy (General) (Amendment) Regulations 2007 | 2007 No. 2903 | Sch. 1 Table Item 4 | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 11(1)(c) | words inserted | The Climate Change Levy (General) (Amendment) Regulations 2012 | 2012 No. 943 | reg. 5(a)(i) | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 11(1)(c) | words omitted | Finance Act 2014 | 2014 c. 26 | Sch. 20 para. 8(4)(a) | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 11(1)(ca) | inserted | The Climate Change Levy (General) (Amendment) Regulations 2012 | 2012 No. 943 | reg. 5(a)(ii) | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 11(1)(ca) | omitted | Finance Act 2014 | 2014 c. 26 | Sch. 20 para. 8(4)(b) | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 11(1)(d) | omitted | The Climate Change Levy (General) (Amendment) Regulations 2007 | 2007 No. 2903 | Sch. 1 Table Item 5 | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 11(2)(a) | word omitted | The Climate Change Levy (General) (Amendment) Regulations 2007 | 2007 No. 2903 | Sch. 1 Table Item 6 | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 11(2)(a) | word inserted | The Climate Change Levy (General) (Amendment) Regulations 2012 | 2012 No. 943 | reg. 5(b) | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 11(2)(a) | word inserted | The Climate Change Levy (General) (Amendment) Regulations 2013 | 2013 No. 713 | reg. 3(b)(i) | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 11(2)(a) | word omitted | The Climate Change Levy (General) (Amendment) Regulations 2013 | 2013 No. 713 | reg. 3(b)(ii) | Yes | |
| The Climate Change Levy (General) Regulations 2001 | 2001 No. 838 | reg. 11(2)(aa)(ab) | inserted | The Climate Change Levy (General) (Amendment) Regulations 2013 | 2013 No. 713 | reg. 3(b)(iii) | Yes | |