foot placement in between pitches

Question
When a batter steps out of the box to take a sign or practice swing does one foot need to remain in the box, if so what is the rule?

Answer
Hi Jane,

you're asking about 7-3-C. (Junior Olympic, Modified Pitch) After entering the batter抯 box, the batter must remain in the box with at least one foot between pitches and while taking signals and practice swings.
EXCEPTIONS: The batter can leave the box:
1. when the ball is batted fair or foul.
2. on a swing, slap or check swing.
3. when forced out of the box by a pitch.
4. on a wild pitch or passed ball.
5. when a play is attempted.
6. when time has been called.
7. when the pitcher leaves the eight-foot circle or the catcher leaves
the catcher抯 box.
8. on a three ball count pitch that is a strike that the batter thinks is a ball.
EFFECT: If the batter leaves the batter抯 box and delays play, for
any other reason the umpire may warn the batter or call a strike.
Any number of warnings and called strikes can be made with each
batter. No pitch has to be thrown and the ball is dead.

Mark