| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 1 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(a) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 2 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(a) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 3 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(a) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 4 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(a) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 5 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(a) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 6 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(a) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 6(5)(d) | inserted | Deddf Amaethyddiaeth (Cymru) 2023 | 2023 asc 4 | Sch. 2 para. 6 | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 6(9) | words substituted | Deddf Llywodraeth Leol ac Etholiadau (Cymru) 2021 | 2021 asc 1 | Sch. 9 para. 46(a)(i) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 6(9) | words omitted | Deddf Llywodraeth Leol ac Etholiadau (Cymru) 2021 | 2021 asc 1 | Sch. 9 para. 46(a)(ii) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 6(9) | words inserted | Rheoliadau Deddf yr Amgylchedd (Cymru) 2016 (Awdurdodau Cyhoeddus sy’n ddarostyngedig i’r Ddyletswydd Bioamrywiaeth a Chydnerthedd Ecosystemau) 2021 | 2021 No. 1350 | reg. 2(2) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 6(10) | words omitted | Deddf Llywodraeth Leol ac Etholiadau (Cymru) 2021 | 2021 asc 1 | Sch. 9 para. 46(b) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 6(10) | words inserted | Rheoliadau Deddf yr Amgylchedd (Cymru) 2016 (Awdurdodau Cyhoeddus sy’n ddarostyngedig i’r Ddyletswydd Bioamrywiaeth a Chydnerthedd Ecosystemau) 2021 | 2021 No. 1350 | reg. 2(3) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 6(10) | words substituted | The Energy Act 2023 (Consequential Amendments) Regulations 2024 | 2024 No. 706 | reg. 22(a) | Not yet made to Welsh language versionNot applicable to English language version | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 6(10) | words substituted | The Energy Act 2023 (Consequential Amendments) Regulations 2024 | 2024 No. 706 | reg. 22(b) | Not applicable to Welsh language versionNot yet made to English language version | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 7 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(a) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 8 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(a) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 9 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(a) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 10 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(a) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 10(1)(f) | words substituted | Deddf Addysg Drydyddol ac Ymchwil (Cymru) 2022 | 2022 asc 1 | Sch. 4 para. 36 | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 11 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(a) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 12 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(a) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 13 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(a) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 14 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(a) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 15 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(a) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 16 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(a) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 17 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(a) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 18 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(a) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 19 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(a) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 20 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(a) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 21 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(a) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 22 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(a) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 23 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(a) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 24 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(a) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 25 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(a) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 26 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(a) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 27 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(a) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 28 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(b) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 29 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(b) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 29(1) | word substituted | Rheoliadau Deddf yr Amgylchedd (Cymru) 2016 (Diwygio Targed Allyriadau 2050) 2021 | 2021 No. 333 | reg. 2 | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 30 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(b) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 31 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(b) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 32 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(b) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 33 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(b) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 34 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(b) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 35 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(b) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 36 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(b) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 37 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(b) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 38 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(b) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 39 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(b) | Yes | |
| Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 40 | coming into force | Deddf yr Amgylchedd (Cymru) 2016 | 2016 anaw 3 | s. 88(2)(b) | Yes | |