A continuous batting order that includes all players on the team roster present for the game batting in order may be used. (Variant of LL Rule 4.04)
When a player is injured, becomes ill, or must leave the game site after the start of the game, the team will skip over him/her when his/her time at bat comes up without penalty. If the injured, ill, or absent player returns he/she is merely inserted into their original spot in the batting order and the game continues. Also, if a player arrives late to a game site, if the manager chooses to enter him/her in the lineup (see Rule 4.01 NOTE 2), he/she would be added to the end of the current lineup. (Variant of LL Rule 4.04)
The on-deck position is not permitted in Little League (Major) Division and below. (LL Rule 1.08 NOTE 1)
Only one player (the batter) is allowed to handle a bat at any time - the batter at the plate. All other players must remain on the "bench". An assistant coach or parent must monitor this requirement to avoid injuries. (LL Rule 1.08 NOTE 2)
Any player throwing a bat will be given a “player warning” for throwing equipment (each player will receive one warning per game). Any further action of throwing equipment will result in the offending player to be called out. If that player had put the ball in play (with less than 2 outs and other runners on) then it is a live ball and the defense may make a play to record an out. In such a case where one of the other runners was called out, then both that runner and the offending player would be out.
Runners may not take a lead and cannot leave the base until the ball has crossed home plate. (LL Rule 7.13)
Head first sliding is not allowed and that player will automatically be called out. Exception: Any player who has possession of a base may “dive back” into the same base to avoid being thrown out by a fielder making a play. (LL Rule 7.08.4)
There is no “must slide” rule. However, the runner is out when the runner does not slide or attempt to get around a fielder who has the ball and is waiting to make the tag. (LL Rule 7.08.a.3)