N.Y. Comp. Codes R. & Regs. tit. 9, § 6210.7
(e) Ballots to be used with poll site optical scan voting systems, shall be in a form consistent with Election Law. Each ballot shall have a numbered stub which can be separated from it along a perforated boundary. Such ballot shall be detached from the numbered stub prior to the election inspector giving the ballot to the voter and be retained by the county board in a manner consistent with election-related document retention requirements. Ballot stubs, however, shall not be required if the board of elections implements procedures to provide for ballot accountability equivalent to the use of ballot stubs as provided for in section 6210.10(b) of this Part.
(f) The county board shall cause its respective printer(s) to certify to the county board, upon delivery of ballots ordered:
(3) that all other ballots printed have been destroyed.
The county board shall inventory all ballots and ensure the security of any and all ballots while they are in the possession of the county board.
(g) For central count paper-based voting systems, ballots printed for absentee voting, and those printed for emergency, special and affidavit purposes shall be tabulated by batch, and be subject to all appropriate provisions of these regulations. The county board shall provide a means by which affidavit, emergency, and special ballots shall be distinguished from absentee ballots.
(3) Ballot accountability and reconciliation procedures shall apply to each sheet of a multiple sheet ballot. Each sheet of a multiple sheet ballot may be spoiled without spoiling another sheet comprising the same multiple sheet ballot.
(i) Ballots printed on demand.
(h) Ballots with multiple sheets.
A board of elections may provide a voter a ballot consisting of more than one separate, unconnected sheets, provided: