Unless special permission otherwise is granted by the Commission, boxers under 19 years of age are permitted to box no more than six rounds; boxers 19 years of age, eight rounds; boxers 20 years of age 10 rounds; and for all bouts over 10 rounds, each boxer in such bout shall be at least 21 years of age.
N.Y. Comp. Codes R. & Regs. Tit. 19 § 211.5