A written agreement between owners and trainers shall be filed at the time they enter a partnership or stable name on any horse. The trainer shall be responsible for filing the written agreement with the New Jersey Racing Commission and the clerk of course at the track where said horse or horses participate within 72 hours.
N.J. Admin. Code § 13:71-7.36
See: 8 New Jersey Register 47(b), 8 New Jersey Register 308(a).