N.Y. Comp. Codes R. & Regs. tit. 16, § 13.2
(1) A utility shall either provide or deny service to any applicant as soon as reasonably possible, but no later than 10 calendar days after receipt of a completed application for service or such later time as may be specified by the applicant, except:
(iii) where precluded by physical impediments, including:
(3) As a prerequisite to accepting an applicant as a customer, and providing service, a utility may require the applicant to:
(iv) make full payment for all amounts due and payable which are not either the subject of a pending billing dispute pursuant to section 13.15 of this Part or of an existing deferred payment agreement that is in good standing, including:
(4) A utility shall provide service to any accepted applicant whose application for service was previously denied solely for failure to make full payment as provided in subparagraph (3)(iv) of this subdivision, as soon as reasonably possible, but no later than three business days, or such later time as may be specified by the applicant, after payment is made, or 10 calendar days after receipt of the original application, whichever is later, except as provided in paragraph (1) of this subdivision.
(b) Service application.
(2) A service application shall contain a section for determining the customer's service classification, which shall include the following:
(7) A service application must be signed by the applicant or an authorized agent of the applicant, and a copy must be provided to the applicant or agent. In the case of agents, a utility may require suitable proof of the authorization of the agent.
(c) Denial of application.
(2) The written notice of denial shall:
(a) Extension of service.