N.Y. Comp. Codes R. & Regs. tit. 21, § 509.59
Nothing in this Part shall limit, impair, or supersede the provisions of section 383(1) of the Executive Law. With respect to sections 509.13, 509.15, 509.18, 509.19, and 509.20 of this Part, where conflict exists with the Uniform Fire Prevention and Building Code (Uniform Code) for product categories of faucets, gas fireplaces, showerheads, water closets, and urinals, the efficiency standards promulgated pursuant to this Part shall apply to the sale, offer for sale, lease, offer for lease, and rent or offer for rent of such products enumerated in this section. The efficiency standards shall not apply to the installation or offer to install such products enumerated in this section.