Help with a rule citation?

[BillyMac]

5.12.3 SITUATION A: A1 is fouled by B1 while in the act of shooting. While the try is in flight the horn sounds ending the fourth quarter playing time. The ball continues its flight and goes through the basket to tie the score. Before A1 attempts the free throw as part of the fourth quarter, Team B captain requests and is granted a 60-second time-out. Team A or B captain then requests a 30-second time-out during the same dead-ball period. RULING: The second request is denied. At the end of playing time for the fourth quarter or any overtime period successive time-outs shall not be granted. This means a time-out cannot be granted either team until the clock has run in the extra period – assuming the free throw is missed. Successive time-outs may be granted in all situations except after time has expired in the fourth quarter or any extra period.

5.12.3 SITUATION B: Following the expiration of time for the first extra period,
the coach of Team B is charged with a technical foul. Team B requests a time-out before the free throws are administered to start the second extra period. The time-out request is granted. Thereafter, the official administers the first free throw to A1. Following the attempt: (a) Team B; or (b) Team A, then requests a time-out. RULING: The request cannot be granted in either (a) or (b), as it would be considered a successive time-out. The fact that the ball did become live between the two requests has no bearing on the ruling. Another time-out request by either team cannot be honored until after the clock has started in the second extra period.