No track may enter a contract that restricts the appearance of a horse at any other track, except that a track, in consideration for transportation afforded to participate in an international championship race may bind a horse to appear and start (if at all) at its track only for such race and a period of 10 consecutive days prior to and 15 consecutive days subsequent to such race.
N.Y. Comp. Codes R. & Regs. Tit. 9 § 4118.9