LAW 63 - ESTABLISHMENT OF A REVOKE
A. Revoke Becomes Established
A revoke becomes established:
1. when the offender or his partner leads or plays to the following trick (any such play, legal or illegal, establishes the revoke).
2. when the offender or his partner names or otherwise designates a card to be played to the following trick.
3. when a member of the offending side makes or agrees to a claim or concession of tricks orally or by facing his hand or in any other way.
B. Revoke May Not Be Corrected
Once a revoke is established, it may no longer be corrected (except as provided in Law 62D for a revoke on the twelfth trick), and the trick on which the revoke occurred stands as played.
Law 62 - CORRECTION OF A REVOKE | Law 64 - PROCEDURE AFTER ESTABLISHMENT OF A REVOKE |