N.Y. Comp. Codes R. & Regs. tit. 22, § 32.3
(a) The examination shall begin by the operator recording:
(6) the party on whose behalf the examination is being conducted.
The person being examined shall be sworn as a witness. If the examination requires the use of more than one tape or film, the end of each tape or film and the beginning of each succeeding tape or film shall be announced by the operator.