No boxing contest, sparring match or exhibition may be more than 12 rounds in length. Rounds must be not more than 3 minutes. There must be a rest period of 60 seconds between successive rounds.
NRS 467.150
Length of boxing contests and rounds; rest between rounds
[7:40:1941; 1931 NCL § 905.06]—(NRS A 1960, 428; 1983, 613, 614; 1993, 1452)
Official source: Nevada Legislature. Reproduced from public-domain Nevada statutes; confirm against the official source for the current text. Not legal advice.