New Jersey Statutes Title 5. Amusements, Public Exhibitions and Meetings 5 § 5-49

Every running race permitholder shall program to run at least one race per day which shall be limited to registered New Jersey bred foals. These races shall provide opportunities for all classes of horses to participate and shall carry a purse 25% higher than corresponding open races. If in the opinion of the commission sufficient competition cannot be had among such class of horses, said race may be eliminated for said day and a substitute race provided instead.