Modifies the required school year start date for school districts in which a charter school operates

This bill modifies the rules for when public school districts in Texas must start the school year, specifically affecting districts that operate charter schools. It establishes a new deadline requiring these districts to begin no earlier than fourteen days before the first Monday in September, with exceptions for districts that run schools year-round. The legislation also outlines specific attendance requirements and allows for make-up days due to weather, while permitting local school boards to vote on earlier start dates only for years prior to 2020-21. Districts that fail to follow these timing rules face financial penalties, though the state board can grant temporary exemptions for unusual circumstances.