[3] Moreover, the rules cannot be suspended to take away a particular member's right to attend meetings, make motions, speak in debate, and vote; these can only be curtailed through disciplinary procedures.
[3][7] Demeter notes how this plays into the reality of parliamentary situations:[9] Bylaws cannot be suspended even by unanimous vote.
But sometimes circumstances, expediency or strong assembly determination in behalf of a cause or proposition make violations necessary.
In all such cases of violations, the action taken is illegal per se; but if no one objects at the time, or never challenges it at any time thereafter, a violation never challenged is never a violation.Similarly, Mason states:[10] It has been held that public bodies can adopt rules, even by majority vote, that cannot be suspended or amended without a two-thirds vote, but it is also held by the courts that actions, taken in violation of procedural rules of parliamentary law and of adopted rules, are valid nevertheless, since failure to conform to the rules of this class suspended them by implication.The action is still illegal if it violates a mandatory constitutional provision, since a legislature cannot suspend the constitution.
[14] In the House of Representatives of the US Congress, motions to suspend the rules are in order on Mondays, Tuesdays, Wednesdays, and during the last six days of a session.
In the United States Senate, the motion to suspend the rules is allowed only with notice or by unanimous consent.