Article III, s 7 of the Florida Constitution requires that bills be read three times, on separate days, before passage by either chamber of the Legislature. Reflecting the “three readings” requirement, the Legislature generally organizes bills by Calendars — the Second Reading Calendar (referred to as “2R”), the Special Order Calendar (referred to as “SO”), and the Third Reading Calendar (referred to as “3R”). Rule 10 in the House and Rule 4 in the Senate generally govern these Calendars of the Legislature. A bill is placed on the Second Reading Calendar after having passed out of all of its committees of reference. A bill is placed on the Special Order Calendar by direct action of the relevant legislative committee that sets the Special Order Calendar. Once a bill on the Special Order Calendar is read on the floor of the relevant chamber and any amendments are acted upon, the bill is placed on the Third Reading Calendar. After the third reading on the floor, amendments may be taken up, the final form of the bill is debated, and a final “roll call” vote of the chamber is taken. Incidentally, the first reading of a bill is usually a non-event, accomplished by publishing the bill title in a journal of the relevant chamber.