N.Y. Educ. Law § 1704

§ 1704. Length of school year, and expenditure of funds. 1. No board\nof education or community board in the city school district of the city\nof New York, except as otherwise provided by law, shall authorize or\npermit the expenditure of funds under its control at a rate which will\nexhaust the amount appropriated prior to the conclusion of the period or\nthe completion of the purpose for which such funds were appropriated.\n 2. Except as otherwise provided by law, no board of education or\ncommunity board in the city school district of the city of New York\nshall provide for a school year consisting of fewer than one hundred\neighty days of school.\n