(a) A horse whose managing owner is a partnership cannot be entered or run in the name, whether real or stable, of an individual partner unless that individual's interest or property in the racing qualities of that horse is equal to at least 25 percent.

(b) All horses in common ownership as defined in section 4026.2(e) of this Title (i.e., having any common managing owner) or section 4026.3(c) (i.e., in which there is a 25 percent commonality among nonmanaging owners) must be coupled and run as an entry.

(c) Not more than two horses trained by the same person shall be drawn into any overnight race, or on the also-eligible list, to the exclusion of another horse.

(d) A maximum of two horses trained by the same trainer may race uncoupled in any race provided the entries do not have common ownership as set forth in subdivision (b) of this section.

(e) The commission steward may require any horses entered in a race to be coupled for betting purposes prior to the commencement of wagering on-track and off-track, if such steward finds it necessary in the public interest.

(f) All horses trained or ridden by a spouse, parent, issue or member of a jockey's household shall be coupled in the betting with any horse ridden by such jockey.

(g) Notwithstanding the provisions of subdivisions (b) and (d) of this section, no entry shall be coupled by reason of common ownership or training in any stakes race in which the gross purse is $50,000 or more, provided however that the provisions of subdivision (e) of this section shall continue to be applicable in any such races. In any race subject to the provisions of this subdivision, the racing secretary shall have the authority to establish a mutuel field and coupled entries in any race with more than 14 starters. When this subdivision permits two or more horses to race without being coupled and run as one entry, the racetrack operator shall take such actions as are necessary to inform the public adequately with regard to the common ownership and/or trainer that would otherwise require such horses to be coupled as a single betting interest pursuant to this section.