N.Y. Pub. Serv. Law § 66-W
Notwithstanding any other provision of law if a utility corporation or municipality does not render a small non-residential customer for gas or electric service, with the exception of a seasonal or short-term customer as defined by rule of the commission, a monthly bill for gas and/or electric services used by such customer during that monthly period, or, in the case of bi-monthly meter reads, during that month and the prior month, within three months from the end date of such monthly billing period, then, such small non-residential customer shall not be charged for such gas and electric services which were not billed to the customer as provided herein, unless the failure of the corporation or municipality to bill sooner was not due to the neglect of the corporation or municipality or was due to the culpable conduct of the customer. The commission shall promulgate regulations necessary to effectuate the purposes of this section. For the purposes of this section, "small nonresidential customer" means non-residential electric customers that are non-demand billed customers and non-residential gas customers that use less than or equal to 750 dekatherms per year. Such term shall not include street lighting accounts.
N.Y. Pub. Serv. Law § 66-W