N.Y. Comp. Codes R. & Regs. tit. 1, § 192.2 – Proper disposal methods.

(1) Composting of culls and waste piles may be done at any time.
(2) Compost piles shall be turned, mixed and otherwise maintained and managed in accordance with prevailing best management practices as established by Cornell University Waste Management Institute or its successors.
(b) Deep burial.
(1) The burial of culls and waste piles may be done at any time.
(2) Culls and waste piles shall be buried at a depth of 18 inches below existing grade and shall be covered with a minimum of 18 inches of soil that is free from onions or potatoes to prevent sprouts from emerging. If sprouts begin to emerge additional soil shall be added to stop sprouting.
(3) Culls and waste piles that will not be buried within eight hours of collection for burial shall be covered with canvas, plastic or closely woven cloth to prevent the potential spread of contaminants.
(c) Field spreading.
(1) The field spreading of culls and waste piles shall be limited to the period October 1st through March 1st.
(2) Culls and waste piles may be spread at a rate of 660 cwt. (66,000 lbs.) per acre on well-drained soil, and 495 cwt. (49,500 lbs.) per acre on moderately-drained soil for the period set forth in paragraph (1) of this subdivision.
(3) The depth of spread material shall not exceed six inches.
(4) Culls and waste piles shall not be spread on fields intended for production of that crop within a period of three years following such spreading.
(5) Fields on which culls and waste piles have been spread shall not be cultivated until after the spread material has completely frozen.
(d) Feeding to livestock.
(1) The feeding of culls and waste piles to livestock may be done at any time.
(2) Culls and waste piles that will not be fed to livestock within eight hours of collection shall be covered with canvas, plastic or closely woven cloth to prevent the potential spread of contaminants.
(e) Incineration.
(1) The burning of culls and waste piles may done at any time provided it is done in accordance with applicable State and local laws and regulations.
(2) Culls and waste piles may be incinerated in a facility that is permitted for solid waste disposal pursuant to 6 NYCRR Part 360.
(3) Culls and waste piles that will not be burned within eight hours of collection for burning shall be covered with canvas, plastic or closely woven cloth to prevent the potential spread of contaminants.
(f) Return to point of origin.
(1) Culls may be returned to the point of origin, provided they are shipped within 30 days of their arrival.
(g) Anaerobic digestion.
(1) Culls and waste piles may be used as feedstock for anaerobic digesters providing it is done in accordance with best management practices and all applicable regulations.
(h) Landfill disposal.
(1) Culls and waste piles may be disposed of at permitted landfills provided it is done in accordance with all applicable regulations.

The following are proper disposal methods for the elimination of culls or waste piles consisting entirely or in part of onions or potatoes not produced in New York State.

(a) Composting.