Time out between quarters?

[Nevadaref]

Originally Posted by Back In The Saddle

Not that I doubt you, but is there a citation on this?

The main timing rule is 5-5-1, but the following play rulings clarify that the horn ends the period and that the intermission has begun.
Bob is fully correct.

10.4.1 SITUATION C: After the horn sounds to end the first half, A1 removes
his/her jersey near the team bench. RULING: A technical foul is charged to A1 and
an indirect technical foul is charged to the head coach; A1 is considered bench
personnel in this situation. (10-4-1h)

4.34.2 SITUATION: The horn sounds to end the third quarter. As the teams are
heading to their respective benches, team members A1 and B1 verbally taunt one
another. RULING: Double technical foul charged to A1 and B1. During the intermission
between quarters, all team members are bench personnel. Both head
coaches are indirectly charged with technical fouls and lose their coaching box privileges.
Play will resume at the point of interruption, which is an alternating-possession
arrow throw-in, to begin the fourth quarter. (10-4-1c Penalty; 10-5-1a)

2006-07 NFHS Basketball Rules Interpretations
SITUATION 4: The horn sounds to end the third quarter. As the teams are heading to their respective benches, team members A1 and B1 verbally taunt one another. RULING: Double technical foul charged to A1 and B1. During the intermission between quarters, all team members are bench personnel. Both head coaches are indirectly charged with technical fouls and lose their coaching box privileges. Play will resume at the point of interruption, which is an alternating-possession arrow throw-in to begin the fourth quarter. (4-34-2; 10-4-1c Penalty)