N.Y. Comp. Codes R. & Regs. tit. 6, § 750-1.12
(a) Any person possessing a SPDES permit which allows the discharge of wastewater into the surface waters of the State shall post a sign as provided for in subdivision (b) of this section at all discharge points to surface waters, except for those sites where the discharge is composed exclusively of stormwater or those sites for which the requirements of this section have been waived in accordance with subdivision (e) or (f) of this section.
(b)
(e) The permittee may apply to the department for a waiver from the requirements of this section, under any of the following subjective circumstances:
(f) For dischargers that are not major, significant facilities, the department may also choose to include permit provisions that allow for all the requirements of this section, including sign and repository requirements, to be waived under any of the following objective circumstances if the department is previously notified in accordance with subdivision (g) of this section: