N.Y. Comp. Codes R. & Regs. tit. 9, § 7612.8
(a) Personal clothing.
Each facility shall provide for the thorough cleaning and when necessary disinfecting of prisoner personal clothing before storage or allowing a prisoner to keep and wear personal clothing.
(b) Facility-issued clothing.
Consistent with section 7612.6(a) of this Part, a clothing exchange shall be provided to all prisoners a minimum of two times per week. All facility-issued clothing shall be laundered and repaired prior to being reissued to another prisoner.
(c) Bedding and linen.
There shall be provisions for linen and towel exchange on at least a weekly basis. Blankets shall be laundered at least once a year or when necessary.