Public authorities must have an open mind during consultation and must not have already made the decision, but may have some ideas about the proposal.
Rhaid i awdurdodau cyhoeddus fod â meddwl agored yn ystod ymgynghoriad ac ni ddylai fod wedi gwneud y penderfyniad eisoes, ond efallai y bydd ganddynt rai syniadau am y cynnig.