Section 73(6)(a) provides that terms implied into sub-contracts are not implied into subcontracts that are for the purpose of carrying out all or any part of a concession contract.
Mae adran 73(6)(a) yn darparu nad yw telerau sy’n ymhlyg mewn is-gontractau yn ymhlyg mewn is-gontractau a ddyfernir i gyflawni unrhyw ran neu bob rhan o gontract consesiwn.