Definitions for "Legislative Day"
The "day" extending from the time either house meets after an adjournment until the time it next adjourns. Because the House normally adjourns from day to day, legislative days and calendar days usually coincide. In the Senate, however, a legislative day may, and frequently does, extend over several calendar days, weeks or months. ( See also Recess.)
A day in which a house of the General Assembly is in Session.
That period from convening after an adjournment until the next adjournment. The house or the senate may convene for a daily session in the morning, recess for lunch, and adjourn that same evening, completing a legislative day on the same calendar day. However, if a chamber recesses at the end of the day, that particular legislative day continues until the next time the chamber adjourns.
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Keywords:  veto, item, line
Line-Item Veto