California Code, Business and Professions Code - BPC § 19614

(c)(1) After distribution of the applicable amounts as set forth in subdivisions (a) and (b) and the payments made pursuant to other relevant sections of this chapter, all funds remaining from the deductions provided in Section 19610 shall be distributed 47.5 percent as commissions and 52.5 percent as purses. From the amount distributed as thoroughbred purses, a sum equal to 0.07 percent of the total handle shall be held by the association to be deposited with the official registering agency pursuant to subdivision (a) of Section 19617.2, and shall thereafter be distributed in accordance with subdivisions (b), (c), and (d) of Section 19617.2.

(2) Any additional amount generated for purses and not distributed during the previous corresponding meeting shall be added to the purses at the current meeting.

(e)(1) A fair conducting a live racing meeting at a fair in the northern zone or a joint powers authority designated by a fair racing association in the northern zone involved in conducting live racing meetings at fairs in the northern zone may retain the funds described in subdivision (d) for the purposes of improving a fair enclosure, racetrack maintenance, safety at fairs, or other similar activities if both of the following conditions are satisfied:

(2) This subdivision shall apply retroactively to January 1, 2016.