The directions are being made under sections 16BB(4), 17(1), 97F(8) and 126(4) of the National Health Service Act 1977.
Gwneir y cyfarwyddiadau o dan adrannau 16BB(4), 17(1), 97F(8) a 126(4) Deddf y Gwasanaeth Iechyd Gwladol 1977.