Whenever delivery notices are given by the seller, the clearing house of the exchange identifies the buyer to whom this notice may be assigned. Exchanges follow different practices for the assignment process. One approach is to display the delivery notice and allow buyers wishing to take delivery to bid for taking delivery. Among the international exchanges, BMF, CBOT and CME display delivery notices. Alternatively, the clearing houses may assign deliveries to buyers on some basis. Exchanges such as COMMEX and the Indian commodities exchanges have adopted this method.