Section 24 allows contracting authorities, in a competitive flexible procedure, to refine award criteria (which might involve consequential refinements to the assessment methodology).
Mae adran 24 yn galluogi awdurdodau contractio, mewn gweithdrefn hyblyg gystadleuol, i fireinio meini prawf dyfarnu (a allai gynnwys mireiniadau canlyniadol i'r fethodoleg asesu).