Firstly, in covered procurements carried out by a private utility, an excluded supplier must be regarded as an excludable supplier (section 57(4) of the Act).
Yn gyntaf, mewn caffaeliadau a gwmpesir sy'n cael eu cyflawni gan gyfleustodau preifat, rhaid ystyried cyflenwr gwaharddedig fel cyflenwr gwaharddadwy (adran 57(4) o'r Ddeddf).