The referee shall call contestants together before such bout for final instructions, covering good sportsmanship and the eight-count; at which time each contestant shall be accompanied by his chief second only. The contestants, after receiving instructions, shall shake hands and retire to their corners. They shall not again shake hands until the beginning of the last round.
N.J. Admin. Code § 13:46-8.8
See: 16 New Jersey Register 2962(a), 17 New Jersey Register 1432(a).
"contestants" substituted for "principals".