What is leaving the boundaries in Tag?

Section 7: Violations & Penalties

Any player who steps outside the agreed boundaries is automatically IT (in classic tag) or is considered tagged/frozen (in elimination variants)
If IT steps outside the boundaries while chasing, the tag does not count and IT must re-enter the play area before resuming
Repeated boundary violations may result in the player sitting out for one round

Pushing: Shoving, pushing, or body-checking another player is prohibited. A player who pushes another player becomes IT as a penalty (or if already IT, the push victim is declared safe).
Tripping: Deliberately tripping another player results in the offender sitting out for one round and the tripped player being declared safe
Grabbing: Holding onto another player's clothing, limbs, or body to prevent them from running is prohibited. Tags must be a tap, not a grab.
Excessive force: Tags should be a light touch, not a hit, slap, or shove. A forceful tag is treated as a push violation.
Tackling: Tackling is never permitted in any form of tag. A player who tackles is immediately removed from the game for that round.

Excessive hiding: In tag variants that do not involve hiding (all except Flashlight Tag), a player who hides and refuses to participate in active play may be called out by the group and given a 10-second warning to rejoin
Base camping: A player who stays on or near a safe zone for excessive time is given a countdown. After 10 seconds, they must leave the base.
IT camping a base: IT may not stand directly adjacent to a base and wait for a player to leave. IT must actively chase. If IT is perceived as camping, the group may require IT to move at least 10 feet from the base before a player is required to leave it.
Refusing to be IT: A player who is clearly tagged but denies it is given one warning. On the second occurrence, they become IT regardless of the dispute.

Denying a valid tag: Since tag is self-governed, honesty is paramount. A player who consistently denies legitimate tags may be excluded from the game by group vote.
Pretending to be frozen: In Freeze Tag, a player who pretends to be frozen to avoid being chased, then runs when IT approaches, is tagged and frozen for real.
False freezing/unfreezing: In Freeze Tag, an unfrozen player who claims to have been frozen (to avoid being chased) is penalized by being frozen for real.

Taunting, name-calling, or deliberately humiliating slower or less skilled players is not tolerated
Targeting a single player repeatedly when other runners are available ("bullying tag") is discouraged. IT should chase whichever player is nearest or most accessible.
Deliberately colliding with other players is treated as a physical contact violation
Persistent unsportsmanlike behavior results in exclusion from the current game

Any player who steps outside the agreed boundaries is automatically IT (in classic tag) or is considered tagged/frozen (in elimination variants)
If IT steps outside the boundaries while chasing, the tag does not count and IT must re-enter the play area before resuming
Repeated boundary violations may result in the player sitting out for one round

Pushing: Shoving, pushing, or body-checking another player is prohibited. A player who pushes another player becomes IT as a penalty (or if already IT, the push victim is declared safe).
Tripping: Deliberately tripping another player results in the offender sitting out for one round and the tripped player being declared safe
Grabbing: Holding onto another player's clothing, limbs, or body to prevent them from running is prohibited. Tags must be a tap, not a grab.
Excessive force: Tags should be a light touch, not a hit, slap, or shove. A forceful tag is treated as a push violation.
Tackling: Tackling is never permitted in any form of tag. A player who tackles is immediately removed from the game for that round.

Excessive hiding: In tag variants that do not involve hiding (all except Flashlight Tag), a player who hides and refuses to participate in active play may be called out by the group and given a 10-second warning to rejoin
Base camping: A player who stays on or near a safe zone for excessive time is given a countdown. After 10 seconds, they must leave the base.
IT camping a base: IT may not stand directly adjacent to a base and wait for a player to leave. IT must actively chase. If IT is perceived as camping, the group may require IT to move at least 10 feet from the base before a player is required to leave it.
Refusing to be IT: A player who is clearly tagged but denies it is given one warning. On the second occurrence, they become IT regardless of the dispute.

Denying a valid tag: Since tag is self-governed, honesty is paramount. A player who consistently denies legitimate tags may be excluded from the game by group vote.
Pretending to be frozen: In Freeze Tag, a player who pretends to be frozen to avoid being chased, then runs when IT approaches, is tagged and frozen for real.
False freezing/unfreezing: In Freeze Tag, an unfrozen player who claims to have been frozen (to avoid being chased) is penalized by being frozen for real.

Taunting, name-calling, or deliberately humiliating slower or less skilled players is not tolerated
Targeting a single player repeatedly when other runners are available ("bullying tag") is discouraged. IT should chase whichever player is nearest or most accessible.
Deliberately colliding with other players is treated as a physical contact violation
Persistent unsportsmanlike behavior results in exclusion from the current game