N.Y. Comp. Codes R. & Regs. tit. 19, § 143-4.1
(b) The searchable index maintained by the central filing office consists of an index of names entered prior to July 1, 2001 (the pre-July 1, 2001 index) and an index of names entered on or after July 1, 2001 (the post-July 1, 2001 index). The following rules were followed when the names were entered in the pre-July 1, 2001 index: