N.Y. Comp. Codes R. & Regs. tit. 12, § 143.5
(a) Every such institution must establish, maintain and preserve for not less than six years, records with respect to each individual permitted to work:
(b) These records shall contain the following data:
(3) the nature of work performed; and
(iv) for an individual permitted to work whose earning capacity for the work to which he is assigned is impaired by age, physical or mental deficiency or injury: