N.Y. Comp. Codes R. & Regs. tit. 8, § 175.6
(2) Period of enrollment means that period commencing on the first day a pupil is enrolled in and is physically present at, or legally absent from, a special education program or service offered by a public school or by an approved private school or facility, or an approved educational program or service for incarcerated youth offered by a public school district or board of cooperative educational services, or an educational program or service provided directly or by contact to a homeless child by a public school district, and terminating on the last day such pupil is enrolled in and is physically present at, or legally absent from, such program or service.
(b) Attendance from September through June.
(5) The tuition to be charged for a student with a disability enrolled for less than the maximum possible period of enrollment for the approved program shall be calculated by multiplying the full approved program tuition rate by the full-time equivalent attendance. The tuition to be charged for a homeless child who is a student with a disability, attends an approved private school or facility, and is enrolled for less than the maximum period of enrollment shall be calculated in the same manner.
(c) Attendance of students with disabilities during July and August.
(3) The tuition and maintenance to be charged for such a student with a disability enrolled for less than the maximum possible period of enrollment for the approved summer program shall be calculated by multiplying the full approved summer program tuition rate and the full approved summer program maintenance rate by the full-time equivalent attendance.
(d) Attendance from July through June.
(a) Definitions.
As used in this section: