In the United States, Article 2 of the Uniform Commercial Code displaces the traditional rule in an attempt to adjust the law of sales of goods to the realities of the modern commercial marketplace. If the goods are identified to the contract for sale and in the possession of the seller, a court may order that the goods be delivered over to the buyer upon payment of the price. This is termed "replevin". In addition, the Code allows a court to order specific performance where "the goods are unique or in other proper circumstances", leaving the question of what circumstances are proper to be developed by case law.