Where it is, when you can step in, and the edge cases that catch players out.
No volleying while you, or anything you wear or hold, touches the kitchen or its lines.
The kitchen isn’t out of bounds. Stand in it or walk through it any time. Just don’t volley there. Rule 11.A
Rules are written by 1SCOR in our own words and checked against the official rulebook. They are not the rulebook: for anything official, read the rulebook itself.