Each order entered into the Trading System must specify the customer account code, and the price and quantity of the security or Futures Contract.

A "zero" account code may be used if the Trading Member has not allocated an account code for a new customer. A "99999" account code may be used if the Trading Member has not allocated an account code to a new foreign customer. Amendment of trade from "zero" or "99999" account to a customer account must be made as soon as an account code is allocated to the customers and is in accordance with Rule 12.8.

Amended on 3 April 20083 April 2008.