(1) The location of the switches controlling the cease betting signals must be approved by the steward.   The steward shall have complete charge of said controls; in the event the parimutuel machines are closed off before time, during wagering on a race, they shall not be reopened without the express permission of the steward.

(2) At all race meetings all betting must cease when the starter dispatches the horse from the starting gate or such other time, prior to the actual start of the race, as the steward may approve.

(3) The steward shall lock all issuing machines when the last horse is loaded in the starting gate.