N.Y. Comp. Codes R. & Regs. tit. 1 § 220.5
The following schedule sets forth the frequency that municipal directors of weights and measures must inspect the following devices and measures.
(b) Petroleum dispensing devices. All commercial petroleum dispensing devices and accessories, except terminal meters, shall be inspected and tested for accuracy at least once a year.
(c) Volumetric measures. All commercially used volumetric measures shall be inspected and checked for accuracy at least annually and shall be recalibrated at least once in every five years, except for bulk milk holding tanks, which shall be calibrated upon installation and shall be recalibrated upon request by either the producer or receiver, or whenever the weights and measures official deems it necessary. When approved by the appropriate municipal director of weights and measures, calibrations performed by the Federal Milk Market Administration shall satisfy the requirements of this subdivision.
(e) All devices and measures, including those set forth in this section, may be tested by the appropriate weights and measures official whenever they deem it necessary to ensure the accuracy of the device or measure.
N.Y. Comp. Codes R. & Regs. Tit. 1 § 220.5