N.Y. Comp. Codes R. & Regs. tit. 10, § 713-2.22
(e) Receptacles (convenience outlets) shall comply with the following:
(g) Nurses' calling systems shall comply with the following:
(h) Emergency electric services shall comply with the following:
(2) The source of this emergency electric service shall be as follows:
(3) Emergency electric service shall be provided to the distribution systems as follows: