Final answer:
The motion to suspend the rules is a parliamentary procedure used to set aside procedural rules, typically requiring a supermajority to pass. It falls under the authority provided by Section 5 of the U.S. Constitution, allowing each house to determine its own rules.
Step-by-step explanation:
The motion to suspend the rules belongs to a class of motions in parliamentary procedure known as Suspension of the Rules. Both the House of Representatives and the Senate have the authority to set their own rules for conducting business, as stated in Section 5 of the Constitution. The purpose of this motion is to set aside procedural rules to expedite business or to consider a matter that would otherwise be out of order. A notable aspect of this motion is that it often requires a supermajority to pass, whether it's a two-thirds vote or some other designated fraction, in order to temporarily suspend the established rules for a specific purpose.