Under Robert's Rules of Order, the rules for this motion protect against instability arising from small variations in attendance from one meeting to the next. For this reason, the requirements for changing a previous action are greater than those for taking the action in the first place. A motion to rescind, repeal, annul or amend something already adopted requires a two-thirds vote, a majority vote with previous notice, or a vote of a majority of the entire membership, any one of which would suffice. Demeter's Manual imposes a similar requirement.