Section 7: Violations & Penalties

A service is a fault (resulting in a hand-out — the opponent becomes the new server) when: The server fails to keep at least one foot inside the service box at the moment of striking the ball (foot fault) (Rule 8.1); The served ball strikes the front wall on or below the service line, or on or ab...

Source: Rule 8, Rule 8.1, Rule 8.2, Rule 8.3, Rule 8.4, Rule 8.5, Rule 10, Rule 12, Rule 12.5, Rule 15, Rule 15.1, Rule 15.2, Rule 15.3, Rule 15.4, Rule 14, Rule 14.1, Rule 14.2, Rule 14.3

Send this to your friend — argument over.