Each contestant must have at least two and no more than three seconds. However, in championship bouts, a contestant may have no more than four seconds. Each such second may wear only such costume as may be prescribed by the Commissioner. Only one of such seconds may be inside the ring at the sound of the time-keeper's whistle, ten seconds before the round is to begin, and shall remove all obstructions, such as buckets and stools at that time.
N.J. Admin. Code § 13:46-7.2