A partnership which, by ownership or lease, controls the racing qualities of a horse shall race such horse under the name, real or stable, of a member of the partnership whose proportionate interest in the horse meets the requirements of section 520.1. All horses, the racing qualities of which are controlled by a given partnership shall be raced under such name.
N.Y. Comp. Codes R. & Regs. Tit. 9 § 4220.10