The Member who presides over a legislative Floor Session. In the Assembly, the presiding officer can be the Speaker, Speaker pro Tempore or any other Assembly Member appointed by the Speaker. In the Senate, the presiding officer can be the President, President pro Tempore, or any other Senator appointed by the President pro Tempore.
The member of the Senate or the House of Representatives whose responsibilities include administering the business of the house, controlling the order of business, referring bills, interpreting rules, and recognizing legislators to speak.
the president or senator currently presiding over legislative proceedings.