(Nid yw'r nodyn hwn yn rhan o'r Gorchymyn)
Dygwyd darpariaethau canlynol Deddf Rheoli Llifogydd a Dŵr 2010 i rym drwy orchymyn cychwyn a wnaed cyn dyddiad y Gorchymyn hwn.
| Darpariaeth y Ddeddf | Y dyddiad cychwyn | Rhif O.S. |
|---|---|---|
| Adran 1 (yn rhannol) | 1 Medi 2010 | 2010/2169 (C. 108) |
| Adran 1 (y gweddill) | 1 Hydref 2010 | 2010/2169 (C. 108) |
| Adran 2 (yn rhannol) | 1 Medi 2010 | 2010/2169 (C. 108) |
| Adran 2 (y gweddill) | 1 Hydref 2010 | 2010/2169 (C. 108) |
| Adran 3 (yn rhannol) | 1 Medi 2010 | 2010/2169 (C. 108) |
| Adran 3 (y gweddill) | 1 Hydref 2010 | 2010/2169 (C. 108) |
| Adran 4 (yn rhannol) | 1 Medi 2010 | 2010/2169 (C. 108) |
| Adran 4 (y gweddill) | 1 Hydref 2010 | 2010/2169 (C. 108) |
| Adran 5 | 1 Hydref 2010 | 2010/2169 (C. 108) |
| Adran 6 (yn rhannol) | 1 Medi 2010 | 2010/2169 (C. 108) |
| Adran 6 (y gweddill) | 1 Hydref 2010 | 2010/2169 (C. 108) |
| Adrannau 7 i 10 | 1 Hydref 2010 | 2010/2169 (C. 108) |
| Adran 11 (o ran Lloegr yn unig) | 19 Gorffennaf 2011 | 2011/1770 (C. 7) |
| Adran 11 (o ran Cymru yn unig) | 1 Tachwedd 2011 | 2011/2204 (C. 80) |
| Adran 12 | 1 Tachwedd 2011 | 2011/2204 (C. 80) |
| Adran 13 | 1 Hydref 2010 | 2010/2169 (C. 108) |
| Adran 14 | 6 Ebrill 2011 | 2011/694 (C. 25) |
| Adran 15 (yn rhannol) | 18 Ionawr 2011 | 2011/95 (C. 4) |
| Adran 15 (y gweddill, o ran Cymru yn unig) | 6 Ebrill 2011 | 2011/694 (C. 25) |
| Adran 16 | 1 Hydref 2010 | 2010/2169 (C. 108) |
| Adran 17 (yn rhannol) | 1 Hydref 2010 | 2010/2169 (C. 108) |
| Adran 17 (y gweddill) | 1 Ebrill 2011 | 2011/694 (C. 25) |
| Adran 18 (o ran Lloegr yn unig) | 19 Gorffennaf 2011 | 2011/1770 (C. 7) |
| Adran 18 (o ran Cymru yn unig) | 1 Tachwedd 2011 | 2011/2204 (C. 80) |
| Adran 19 | 6 Ebrill 2011 | 2011/694 (C. 25) |
| Adran 20 | 1 Hydref 2010 | 2010/2169 (C. 108) |
| Adran 21 | 6 Ebrill 2011 | 2011/694 (C. 25) |
| Adran 22 (yn rhannol) | 1 Hydref 2010 | 2010/2169 (C. 108) |
| Adran 22 (y gweddill) | 1 Ebrill 2011 | 2011/694 (C. 25) |
| Adran 23 | 1 Ebrill 2011 | 2011/694 (C. 25) |
| Adran 24 | 1 Hydref 2010 | 2010/2169 (C. 108) |
| Adran 25 | 1 Ebrill 2011 | 2011/694 (C. 25) |
| Adran 26 | 1 Hydref 2010 | 2010/2169 (C. 108) |
| Adran 27 | 1 Hydref 2011 | 2011/2204 (C. 80) |
| Adrannau 28 a 29 | 1 Hydref 2010 | 2010/2169 (C. 108) |
| Adran 30 (yn rhannol) | 6 Ebrill 2011 | 2011/694 (C. 25) |
| Adran 30 (y gweddill) | 1 Awst 2012 | 2012/2000 (C.79) |
| Adran 31 (yn rhannol) | 1 Hydref 2010 | 2010/2169 (C. 108) |
| 1 Ebrill 2011 | 2011/694 (C. 25) | |
| 6 Ebrill 2011 | 2011/694 (C. 25) | |
| 19 Gorffennaf 2011 | 2011/1770 (C. 7) | |
| 1 Hydref 2011 | 2011/2204 (C. 80) | |
| 6 Ebrill 2012 | 2012/879 (C. 25) | |
| Adran 33 (yn rhannol) | 1 Hydref 2011 | 2011/2204 (C. 80) |
| Adran 34 (yn rhannol) | 1 Hydref 2010 | 2010/2169 (C. 108) |
| 1 Ebrill 2011 | 2011/694 (C. 25) | |
| Adran 35 (yn rhannol) | 1 Hydref 2010 | 2010/2169 (C. 108) |
| Adran 36 (yn rhannol) | 1 Medi 2010 | 2010/2169 (C. 108) |
| Adran 36 (y gweddill) | 1 Hydref 2010 | 2010/2169 (C. 108) |
| Adran 37 | 6 Ebrill 2011 | 2011/694 (C. 25) |
| Adrannau 38 a 39 (yn rhannol) | 18 Ionawr 2011 | 2011/95 (C. 4) |
| Adrannau 38 a 39 (y gweddill) | 1 Rhagfyr 2011 | 2011/2856 (C. 101) |
| Adrannau 40 ac 41 | 1 Hydref 2010 | 2010/2169 (C. 108) |
| Adrannau 42 a 43 (yn rhannol) | 1 Hydref 2010 | 2010/2169 (C. 108) |
| Adran 44 | 1 Hydref 2011 | 2011/2204 (C. 80) |
| Adran 45 (yn rhannol) | 1 Hydref 2010 | 2010/2169 (C. 108) |
| Adrannau 46 a 47 | 1 Hydref 2010 | 2010/2169 (C. 108) |
| Yn Atodlen 1— | ||
| Paragraffau 15 ac 16 (yn rhannol) | 6 Ebrill 2011 | 2011/694 (C. 25) |
| Paragraff 17 | 6 Ebrill 2011 | 2011/694 (C. 25) |
| Atodlen 1 (y gweddill) | 1 Awst 2012 | 2012/2000 (C.79) |
| Yn Atodlen 2— | ||
| Paragraffau 1 i 24 (o ran Lloegr yn unig) | 19 Gorffennaf 2011 | 2011/1770 (C. 7) |
| Paragraffau 1 i 24 (o ran Cymru yn unig) | 1 Hydref 2011 | 2011/2204 (C. 80) |
| Paragraff 25 | 1 Hydref 2010 | 2010/2169 (C. 108) |
| Paragraffau 26 a 27 | 6 Ebrill 2012 | 2012/879 (C. 25) |
| Paragraff 28 | 1 Hydref 2010 | 2010/2169 (C. 108) |
| Paragraffau 29 a 30 (o ran Lloegr yn unig) | 19 Gorffennaf 2011 | 2011/1770 (C. 7) |
| Paragraffau 29 a 30 (o ran Cymru yn unig) | 1 Hydref 2011 | 2011/2204 (C. 80) |
| Paragraffau 31, 32(1) i (3) a (5) i (7), 33 a 34 | 6 Ebrill 2012 | 2012/879 (C. 25) |
| Paragraffau 35 ac 36 (o ran Lloegr yn unig) | 19 Gorffennaf 2011 | 2011/1770 (C. 7) |
| Paragraffau 35 ac 36 (o ran Cymru yn unig) | 1 Hydref 2011 | 2011/2204 (C. 80) |
| Paragraff 37 | 6 Ebrill 2011 | 2011/694 (C. 25) |
| Paragraffau 38 a 39 (o ran Lloegr yn unig) | 19 Gorffennaf 2011 | 2011/1770 (C. 7) |
| Paragraffau 38 a 39 (o ran Cymru yn unig) | 1 Hydref 2011 | 2011/2204 (C. 80) |
| Paragraffau 40, 41, 43 a 44 | 1 Ebrill 2011 | 2011/694 (C. 25) |
| Paragraffau 45 i 47 (o ran Lloegr yn unig) | 19 Gorffennaf 2011 | 2011/1770 (C. 7) |
| Paragraffau 45 i 47 (o ran Cymru yn unig) | 1 Hydref 2011 | 2011/2204 (C. 80) |
| Paragraff 48 | 1 Ebrill 2011 | 2011/694 (C. 25) |
| Paragraff 49 (o ran Lloegr yn unig) | 19 Gorffennaf 2011 | 2011/1770 (C. 7) |
| Paragraff 49 (o ran Cymru yn unig) | 1 Hydref 2011 | 2011/2204 (C. 80) |
| Paragraffau 50 i 53 | 1 Ebrill 2011 | 2011/694 (C. 25) |
| Paragraff 54 (yn rhannol) | 1 Hydref 2010 | 2010/2169 (C. 108) |
| Paragraff 54 (y gweddill) | 6 Ebrill 2011 | 2011/694 (C. 25) |
| Yn Atodlen 4— | ||
| Paragraff 1 | 1 Hydref 2011 | 2011/2204 (C. 80) |
| Paragraffau 2, 4, 7, 10, 12, 22, 25, 27, 30, 31, 32, 33 a 37 (yn rhannol) | 1 Hydref 2011 | 2011/2204 (C. 80) |
| Paragraffau 38 i 40, 42 a 43 | 1 Hydref 2011 | 2011/2204 (C. 80) |
| Yn Atodlen 5— | ||
| Paragraffau 1 a 2 | 1 Ebrill 2011 | 2011/694 (C. 25) |
| Paragraff 3 (yn rhannol) | 1 Hydref 2010 | 2010/2169 (C. 108) |
| Paragraff 4 | 1 Ebrill 2011 | 2011/694 (C. 25) |
| Paragraffau 5 a 6 (yn rhannol) | 1 Hydref 2010 | 2010/2169 (C. 108) |