176.—(1) Mae rheoliad 4 wedi ei ddiwygio fel a ganlyn.
(2) Ym mharagraff (2), ar ôl “the Assembly” mewnosoder “, the NRBW”.
(3) Ym mharagraff (3)—
(a)yn is-baragraff (b), hepgorer “and”;
(b)ar ôl is-baragraff (b) mewnosoder—
“(ba)in the case of the NRBW, its principal office and its principal regional offices; and”.