A motion to suspend the Rules requires a vote of two-thirds of the Members present and voting, and no amendments are in order unless submitted with the bill by its manager at the time the motion to suspend the Rules is offered.
Debate on a bill brought up under suspension is limited to 40 minutes -- 20 minutes controlled by a Member who supports the bill and 20 minutes controlled by a Member in opposition. A division does not always follow party lines depending on the issue. For control of the opposition time, priority is given to a Minority Member of the committee which has jurisdiction over the bill. Often the 20 minutes "in opposition" is controlled by the ranking Minority member of the committee or subcommittee who may not be opposed to the measure because no one rises in opposition, but he may be challenged for control of the opposition time by another Minority party member.
At the conclusion of debate, the postponed votes may be "clustered" and put before the House. If several votes have been ordered and the Chair has announced that the time for voting will be reduced, the first vote in the series will consume not less than 15 minutes and all subsequent roll calls will take not less than 5 minutes each. It is important to know when a 5-minute vote is expected, so that it will not be missed.
In the case of a series of two or more votes in which any votes after the first one are five minute votes, Members will be summoned to the Floor by two bells followed by five bells. "