In order to encourage and develop the racing of quarter horses, whenever a fair conducts a program of horse races on which there is parimutuel wagering, it shall, so far as practicable, provide a program of quarter horse racing on the same days that it provides a program of other types of horse racing, if sufficient quarter horses are available to provide competition in one or more quarter horse races.
Such quarter horse events may be in addition to the customary number of thoroughbred or standardbred events.