S.C. Code Regs. 20-11.3
S.C. Code Regs. 20-11.3. Time of Round; Rest Period
1. Each round of boxing shall be three (3) minutes unless approved in advance by the Commission representative. However, in the event of a knockdown near the end of a round, the round shall continue until the official count has ended.
2. Each rest period between rounds shall be one (1) minute.