All teams must use a continuous batting order, meaning that the entire rosters of players present must be placed in the batting order. (LL Rules, 2.0, Batting Order; 4.04, Note 1, Note 2)
There is no on-deck circle allowed in Little League. Under no circumstances shall any player have a bat in hand until the player is wearing a Little League approved batting helmet, an adult is immediately present, and it is time for the player to bat. (LL Rules, 1.08, Note 1)
Only the first batter of each half-inning is permitted outside the dugout between half-innings. (LL Rules, 1.08, Note 2)
Bat boys and bat girls are not permitted. (LL Rules III(b))
Batters may not bunt. The penalty for this infraction is to call the attempt (regardless of whether contact is made) a strike and return the batter to the batter’s box. If it is attempted on the batter’s last pitch, the batter is out. (Note: If the batter takes a full swing and puts the ball in play, the batter may advance to first base regardless of how far the ball travels.)