N.Y. Educ. Law § 3005-b

§ 3005-b. Leave of absence for personal illness. The school\nauthorities of each school district outside of a city having a\npopulation in excess of one million shall allow each teacher employed by\nthe district sick leave without loss of salary for at least ten working\ndays in any year on account of personal sickness or physical disability;\nand provided, further, that if any employee does not use the full amount\nof sick leave allowed in any school year, the amount not used shall be\naccumulated from year to year and used, if needed, up to a total of not\nless than one hundred fifty working days. Any accumulation of unused\nsick leave heretofore granted by such school authorities shall be\ncounted toward the accumulated leave herein provided. Nothing contained\nin this section shall be construed to authorize a reduction in the\namount of accumulated leave granted to a teacher prior to July first,\nnineteen hundred sixty-five.\n