In addition to authorized employees and agents of the Exchange, only members, registered employees of members, permit holders and authorized visitors shall be permitted on the floor of the Exchange. No person may be introduced on the floor of the Exchange by a member on more than three days of any calendar month. Members must at all times accompany visitors for whom they have obtained floor access and are responsible for the conduct and actions of visitors for whom they have obtained floor access while such visitors are on Exchange premises. No privileges other than admittance to the floor may be extended to a guest.  A guest is specifically prohibited from performing any of the functions of an employee of a member or member firm, entering a trading pit, placing orders, using any electronic devices or market display equipment and blocking aisleways or access to trading pits. (11/29/07)