SOURCE: USA Basketball
International, NBA and NCAA basketball rules differences
Rule ... FIBA ... NBA ... NCAA
Duration of game ... Four 10-minute quarters ... Four 12-minute quarters ... Two 20-minute halves
Court length ... 91' 10 x 49' 2.5 ... 94' x 50' ... 94' x 50'
Size of lane ... 19' 8.2 x 19' 0.3 ... 16' x 19' ... 12' x 19'
3-point FG distance ... 20' 6.1 ... 23' 9 (22' in corner) ... 19' 9
Shot clock ... 24 seconds ... 24 seconds ... 35 seconds
Back court violation ... 8 seconds ... 8 seconds ... 10 seconds
Player foul limit ... 5 ... 6 ... 5
Bonus free throw ... 5th foul of quarter (2 FTs) ... 5th foul of quarter (2 FTs) 7th foul of half (1-and-1); 10th foul of half (2 FTs)
Touch ball on/above cylinder ... Yes ... No ... No
Closely guarded for 5 seconds ... Yes (while holding ball) ... No ... Yes (while holding/dribbling ball)
Defensive 3 seconds ... No ... Yes ... No
Number of referees ... Two ... Three ... Three
Timeouts called by ... Coach or assistant coach ... Head coach or player in game ... Head coach or player in game
Legal jersey numbers ... 4-15 ... All numbers 00, 0-5, 10-15, 20-25, 30-35, 40-45, 50-55