News Trading
A window on both sides of the release, and only for opening
The prop rulesIntermediate
Around flagged high-impact news events there is a window on both sides of the release in which opening a new position is blocked — before it and after it. Your plan sets how wide that window is.
Two points cause most of the confusion: the rule is about opening, not holding, so a position that was already open is untouched; and it does not breach the account, it simply rejects the order.