N.Y. Comp. Codes R. & Regs. tit. 9, § 7621.6
(c) Each double occupancy housing unit originally designated for individual occupancy shall contain the following:
(f) Each inmate shall undergo a screening and risk assessment, including a review of medical records, prior to being assigned to a double occupancy housing unit originally designated for individual occupancy. Only those inmates determined by the department to be suitable shall be assigned to double occupancy housing units originally designated for individual occupancy. The department shall adopt regulations setting forth the standards for determining an inmate's suitability for assignment to a double occupancy housing unit originally designated for individual occupancy. Such standards shall include, but not be limited to, the following factors:
(i) Only those inmates determined by the department to be compatible shall be housed together in a double occupancy housing unit originally designated for individual occupancy. The department shall adopt regulations setting forth standards for selecting which inmates of those determined to be suitable are to be housed together in a double occupancy housing unit originally designated for individual occupancy. Such standards shall include, but not be limited to, the following factors:
(k) No individual occupancy housing unit may be converted by the department to a double occupancy housing unit originally designated for individual occupancy without the approval of the commission. The factors the commission shall consider in determining whether to approve the conversion of an individual occupancy housing unit to a double occupancy housing unit originally designated for individual occupancy shall include, but not be limited to, the following: