Any lot of "cull" potatoes, regardless of place of origin, when exposed for sale or transported for sale within this State, either in closed containers, open containers or in bulk, shall be plainly and conspicuously marked "culls." When "cull" potatoes are delivered to a common carrier for shipment or are being moved to market in a truck or other medium of transportation, such delivery or such movement shall be presumptive evidence of transport of sale.
N.Y. Comp. Codes R. & Regs. Tit. 1 § 166.3