Once introduced, the Speaker or the Lt. Governor assigns it to a committee. The committee and its chairman are gatekeepers of the bills. The decision of the committee gives life or death to the bill. Only rarely is a committee's decision to approve, kill or keep a bill challenged. In fact, the chairman may kill the bill by simply never placing it on the agenda.
Some committees have sub-committees.
Thus, the bill must first face the judgment of the sub-committee and its chairman. If is approved, the bill goes on the House or Senate general calendar. This means it is eligible to come to the floor. During the first part of the session, the Speaker or the Lt. Governor decides which bills on the general calendar come to the floor.