California Code, Business and Professions Code - BPC § 19613.1

(a) With respect to thoroughbred racing, except as provided in subdivision (b), the board shall determine which matters shall be the subject of negotiation and contract between the owners' organization and the association, and which matters shall be the subject of negotiation and contract between the trainers' organization and the association.

(b) The owners' organization shall generally be responsible for negotiating purse agreements, satellite simulcast agreements, and all other business agreements relating to the conduct of racing that affect the owners. The trainers' organization shall generally be responsible for negotiating issues relating to the backstretch, track safety, and the welfare of backstretch employees.

(c) The board shall resolve issues that are not settled between the associations and the organizations representing owners and trainers.