N.Y. Comp. Codes R. & Regs. tit. 7, § 305.5 – Closing cell hatch covers.

(a) In those SHU cells which have only one solid door, vision panels will be maintained with the hatch coverings in an opened position, unless a deprivation order is issued. A deprivation order to close such hatch coverings may be issued for good cause, including but not limited to the reasons listed below which warrant their being closed:
1. (1) The throwing of feces, urine, food, or other objects through the aforementioned openings.
2. (2) The inmate refuses to keep his/her hands within the cell and/or otherwise attempts to assault or harass staff.
3. (3) The inmate is so disruptive as to adversely affect the proper operation of the unit.
(b) Hatch coverings may be closed temporarily on all cells when it is necessary to move an inmate for other than routine reasons, e.g., when an inmate is being disruptive during movement or use of a chemical agent is necessary or anticipated.
(c) Feed-up hatches shall remain closed except during feed-up activities or when it is necessary to open the hatches to pass items to or from the inmate.