Unanimous agreement can sometimes be expected when the president feels that no one would object if he formally requested it.  For example, if it is obvious that the members of an assembly are listening to a speaker who has exceeded the deadlines of the debate but is about to end, the Chair may authorize the speaker to continue without interruption.  With regard to the application of these agreements, the Presidents have taken different positions. Unanimous approval is required in order not to make the reading. Each member may request that the minutes be read and should be made.  In non-legislative advisory bodies that operate under Robert`s regulatory rules, unanimous approval is often used to expedite the consideration of uncontested applications.    It is sometimes used simply as a time-saving device, especially at the end of the session. Sometimes MPs do not want a recorded official vote on the subject, or they know they would lose such a vote and do not feel the need to take the time to do so. With regard to the issue of ambiguity, there have been two major problems. First, could these agreements be amended or modified by another unanimous approval agreement? Second, could the president enforce these agreements? Today, these two principles are accepted as procedural ”data”. A few decades ago, this is no longer the case.