WD 1 (contract award notice published and start of standstill period) WD 2 WD 3 WD 4 WD 5 WD 6 WD 7 WD 8 WD 9 (contract can be entered into)
DG 1 (cyhoeddi'r hysbysiad dyfarnu contract a dechrau'r cyfnod segur) DG 2 DG 3 DG 4 DG 5 DG 6 DG 7 DG 8 DG 9 (gellir ymrwymo