MO HB2335

School boards must prepare annual calendars with a minimum of 174 days for five-day school weeks or 142 days for four-day school weeks, plus 1,044 hours of actual pupil attendance and six make-up days for inclement weather.

School districts cannot open before ten calendar days prior to the first Monday in September unless the school board holds a public meeting and votes by majority to allow an earlier opening date; this requirement applies each year an earlier date is proposed.

Districts designated as unaccredited or provisionally accredited must limit breaks to no more than six consecutive weeks between school years, three consecutive weeks between grading periods, and five consecutive days during any grading period in the following school year.

Violations of school calendar opening date provisions result in the state withholding one quarter of the district's state funding under section 163.031 for each date of violation.

The state board of education may grant one-year exemptions for districts with highly unusual and extenuating circumstances, and year-round schools are exempt from opening date restrictions.