Simplified Rules of Order
Motions That Bring a Question Again Before the Assembly
A meeting, like an individual, has a right to change its mind. There are two ways a meeting can do so--rescind or reconsider.
A motion to rescind means a proposal to cancel or annul an earlier decision. A motion to reconsider, if passed, enables a meeting to debate again the earlier motion and eventually vote again on it. However, a motion to rescind, if passed, cancels the earlier motion and makes it possible for a new motion to be placed before the meeting.
Another form of the same motion--a motion to amend something previously adopted--can be proposed to modify only a part of the wording or text previously adopted, or to substitute a different version.
Negative votes on such motions can be reconsidered, but not affirmative ones.