The Procedure for Declaring, Overriding and Repealing an Edict
Declaring an Edict
Using 10 attendees, for Publicity: Ketuvot 7b
Whether the edict must be communally accepted: Megillah 5b
Overriding an Edict
Overriding an edict if its reason does not apply: Eruvin 104a-b
Repealing an Edict
Repealing an edict requires a new vote by a court [davar sheb'minyan tzarich minyan acher l'hatiro]: Beitzah 5a-b
