N.Y. Educ. Law § 409-J
On or before January first, two thousand ten, a city school district located in a city of one million or more inhabitants shall, pursuant to rules and regulations promulgated by the chancellor of such city school district and consistent with section twenty-eight hundred one-a of this chapter, implement an emergency alert notification system to convey timely information concerning emergency incidents or occurrences, as defined by such chancellor, that pose an imminent threat to the health or safety of a substantial number of students, faculty and staff at a particular educational facility or program. Such emergency alert notification system shall employ a variety of communication methods including the automated delivery of text messages, phone calls and/or electronic mail and shall notify and advise parents or persons in parental relation, faculty, staff, and elected representatives, who volunteer to receive emergency alert notifications.
N.Y. Educ. Law § 409-J