(Nid yw'r nodyn hwn yn rhan o'r Gorchymyn.)
Daethpwyd â darpariaethau canlynol Deddf Iechyd 1999 i rym, neu maent i ddod i rym, mewn perthynas â Chymru drwy orchymyn cychwyn a wnaed cyn dyddiad y Gorchymyn hwn.
Yn ogystal â'r darpariaethau a restrir isod, daethpwyd ag amryw ddarpariaethau eraill i rym mewn perthynas â Lloegr drwy orchmynion cychwyn O.S.1999/2177, 2342, 2540 a 2793 ac mewn perthynas â'r Alban drwy orchymyn cychwyn O.S.A. 1999/90.
| Darpariaeth | Dyddiad Cychwyn | Rhif yr O.S. |
|---|---|---|
| a.12 | 1.12.99 | 1999/3184 (Cy.42) (C.82) |
| a.13 i 18 | 1.11.99 | 1999/3184 (Cy.42) (C.82) |
| a.19 | 1.11.99 | 1999/2793 (C.69) |
| a.20 (yn rhannol) | 1.11.99 | 1999/2793 (C.69) |
| a.23 to 25 | 1.11.99 | 1999/2793 (C.69) |
| a.28 (yn rhannol) | 1.11.99 | 1999/3184 (Cy.42) (C.82) |
| a.41 | 1.4.2000 | 1999/2793 (C.69) |
| a.42 to 44 | 1.10.99 | 1999/2540 (C.64) |
| a.65(1) (yn rhannol) | 1.11.99 | 1999/3184 (Cy.42) (C.82) |
| (yn rhannol) | 1.11.99 | 1999/2793 (C.69) |
| (yn rhannol) | 1.12.99 | 1999/3184 (Cy.42) (C.82) |
| (yn rhannol) | 4.1.2000 | 1999/2342 (C.60) |
| (yn rhannol) | 1.4.2000 | 1999/2342 (C.60) |
| (yn rhannol) | 1.4.2000 | 1999/2793 (C.69) |
| a.65(2) (yn rhannol) | 1.11.99 | 1999/2793 (C.69) |
| (yn rhannol) | 1.4.2000 | 1999/2793 (C.69) |
| Atodlen 2 | 1.11.99 | 1999/2793 (C.69) |
| Atodlen 4 | ||
| paragraff 4 (yn rhannol) | 1.11.99 | 1999/3184 (Cy.42) (C.82) |
| (yn rhannol) | 1.12.99 | 1999/3184 (Cy.42) (C.82) |
| (yn rhannol) | 1.4.2000 | 1999/2793 (C.69) |
| paragraff 5 | 1.12.99 | 1999/3184 (Cy.42) (C.82) |
| paragraff 6 | 1.12.99 | 1999/3184 (Cy.42) (C.82) |
| paragraff 9 (yn rhannol) | 1.12.99 | 1999/3184 (Cy.42) (C.82) |
| paragraff 12 (yn rhannol) | 1.12.99 | 1999/3184 (Cy.42) (C.82) |
| paragraff 15 (yn rhannol) | 1.12.99 | 1999/3184 (Cy.42) (C.82) |
| paragraff 26 | 1.12.99 | 1999/3184 (Cy.42) (C.82) |
| paragraff 27(b) | 1.4.2000 | 1999/2793 (C.69) |
| paragraff 30 (yn rhannol) | 1.12.99 | 1999/3184 (Cy.42) (C.82) |
| paragraff 31 (yn rhannol) | 1.12.99 | 1999/3184 (Cy.42) (C.82) |
| paragraff 32 | 1.12.99 | 1999/3184 (Cy.42) (C.82) |
| paragraff 34(b) | 1.12.99 | 1999/3184 (Cy.42) (C.82) |
| paragraff 37 (yn rhannol) | 1.11.99 | 1999/3184 (Cy.42) (C.82) |
| (yn rhannol) | 1.12.99 | 1999/3184 (Cy.42) (C.82) |
| paragraff 38 (yn rhannol) | 1.12.99 | 1999/3184 (Cy.42) (C.82) |
| (yn rhannol) | 1.4.2000 | 1999/2793 (C.69) |
| paragraff 39 | 1.12.99 | 1999/3184 (Cy.42) (C.82) |
| paragraffau 65 to 69 | 1.4.2000 | 1999/2793 (C.69) |
| paragraff 73 | 1.4.2000 | 1999/2342 (C.60) |
| paragraff 74 (yn rhannol) | 1.11.99 | 1999/2793 (C.69) |
| (yn rhannol) | 1.12.99 | 1999/3184 (Cy.42) (C.82) |
| (yn rhannol) | 4.1.2000 | 1999/2342 (C.60) |
| (yn rhannol) | 1.4.2000 | 1999/2342 (C.60) |
| paragraff 75 | 1.12.99 | 1999/3184 (Cy.42) (C.82) |
| paragraff 76(a) (yn rhannol) | 1.11.99 | 1999/2793 (C.69) |
| (yn rhannol) | 4.1.2000 | 1999/2342 (C.60) |
| paragraff 76(b) | 1.12.99 | 1999/3184 (Cy.42) (C.82) |
| paragraff 79 | 1.11.99 | 1999/3184 (Cy.42) (C.82) |
| paragraff 81 (yn rhannol) | 1.11.99 | 1999/2793 (C.69) |
| paragraff 82 | 1.4.2000 | 1999/2342 (C.60) |
| paragraff 83 (yn rhannol) | 1.12.99 | 1999/3184 (Cy.42) (C.82) |
| paragraff 85 (yn rhannol) | 4.1.2000 | 1999/2342 (C.60) |
| paragraff 86 | 1.4.2000 | 1999/2342 (C.60) |
| paragraff 88 (yn rhannol) | 1.12.99 | 1999/3184 (Cy.42) (C.82) |
| Atodlen 5 (yn rhannol) | 1.11.99 | 1999/2793 (C.69) |
| (yn rhannol) | 1.4.2000 | 1999/2793 (C.69) |