Unless there are extraordinary circumstances, councils must give public notice of a meeting at least 3 clear days before the meeting and must publish the notice electronically.
Oni bai fod amgylchiadau eithriadol, rhaid i gynghorau roi hysbysiad cyhoeddus o gyfarfod o leiaf dri diwrnod clir cyn y cyfarfod a rhaid iddynt gyhoeddi'r hysbysiad yn electronig.