N.Y.C. Admin. Code § 9-109: § 9-109 Classification.

The commissioner of correction shall so far as practicable classify all felons, misdemeanants and violators of local laws under the commissioner's charge, so that the youthful or less hardened offenders shall be segregated from the older or more hardened offenders. The commissioner of correction may set apart one or more of the penal institutions for the custody of such youthful or less hardened offenders, and he or she is empowered to transfer such offenders thereto from any penal institution of the city. The commissioner of correction is empowered to classify the transferred incarcerated individuals, so far as practicable, with regard to age, nature of offense, or other fact, and to separate or group such offenders according to such classification.

(Am. 2021 N.Y. Laws Ch. 322, 8/2/2021, eff. 8/2/2021)