Schedule 3 of the Act provides a methodology that contracting authorities must use when estimating the value of their contracts in order to discharge their obligations under Section 4.
Mae Atodlen 3 o’r Ddeddf yn rhoi methodoleg y mae'n rhaid i awdurdodau contractio ei defnyddio wrth amcangyfrif gwerth eu contractau er mwyn bodloni eu rhwymedigaethau o dan adran 4.