1. In a sale by auction, if goods are put up in lots, each lot is the subject of a separate sale. 2. A sale by auction is complete when the auctioneer so announces by the fall of the hammer or in other customary manner. If a bid is made while the hammer is falling in acceptance of a prior bid, the auctioneer may in the auctioneer's discretion reopen the bidding or declare the goods sold under the bid on which the hammer was falling. 3. Such a sale is with reserve unless the goods are in explicit terms put up without reserve. In an auction with reserve the auctioneer may withdraw the goods at any time until the auctioneer announces completion of the sale. In an auction without reserve, after the auctioneer calls for bids on an article or lot, that article or lot cannot be withdrawn unless no bid is made within a reasonable time. In either case a bidder may retract the bidder's bid until the auctioneer's announcement of completion of the sale, but a bidder's retraction does not revive any previous bid. 4. If the auctioneer knowingly receives a bid on the seller's behalf or the seller makes or procures such a bid, and notice has not been given that liberty for such bidding is reserved, the buyer may at the buyer's option avoid the sale or take the goods at the price of the last good-faith bid prior to the completion of the sale. This subsection shall not apply to any bid at a forced sale.
41-02-46. (2-401) Passing of title - Reservation for security - Limited application of section. Each provision of this chapter with regard to the rights, obligations, and remedies of the seller, the buyer, purchasers, or other third parties applies irrespective of title to the goods except when the provision refers to such title. Insofar as situations are not covered by the other provisions of this chapter and matters concerning title become material, the following rules apply: 1. Title to goods cannot pass under a contract for sale prior to their identification to the contract (section 41-02-49) and, unless otherwise explicitly agreed, the buyer acquires by their identification a special property as limited by this title. Any retention or reservation by the seller of the title (property) in goods shipped or delivered to the
buyer is limited in effect to a reservation of a security interest. Subject to these provisions and to the provisions of the chapter on secured transactions (chapter 41-09), title to goods passes from the seller to the buyer in any manner and on any conditions explicitly agreed on by the parties. 2. Unless otherwise explicitly agreed, title passes to the buyer at the time and place at which the seller completes the seller's performance with reference to the physical delivery of the goods, despite any reservation of a security interest and even though a document of title is to be delivered at a different time or place and in particular and despite any reservation of a security interest by the bill of lading: a. If the contract requires or authorizes the seller to send the goods to the buyer but does not require the seller to deliver them at destination, title passes to the buyer at the time and place of shipment; but b. If the contract requires delivery at destination, title passes on tender there. 3. Unless otherwise explicitly agreed, if delivery is to be made without moving the goods: a. If the seller is to deliver a tangible document of title, title passes at the time when and the place where the seller delivers such documents and, if the seller is to deliver an electronic document of title, title passes when the seller delivers the document; or b. If the goods are at the time of contracting already identified and no documents of title are to be delivered, title passes at the time and place of contracting. 4. A rejection or other refusal by the buyer to receive or retain the goods, whether or not justified, or a justified revocation of acceptance revests title to the goods in the seller. Such revesting occurs by operation of law and is not a "sale".