5. Yn rheoliad 17(2A) (tystysgrifau cwblhau)—
(a)yn is-baragraff (c), hepgorer “consumption”;
(b)ar ôl is-baragraff (ca) mewnosoder—
“(cb)regulation 26C (target primary energy rates for new buildings),”.
Gwybodaeth Cychwyn
I1Rhl. 5 mewn grym ar 23.11.2022, gweler rhl. 1(3)