diff --git a/wca-guidelines.md b/wca-guidelines.md
index 65445ec0..95b19f8f 100644
--- a/wca-guidelines.md
+++ b/wca-guidelines.md
@@ -77,6 +77,8 @@ To be more informative, each Guideline is classified using one of the following
 - 3j+) [REMINDER] In the past, engraved/embossed parts have been permitted. This is no longer permitted.
 - 3j++) [CLARIFICATION] On Clock, pins must not be distinguishable from any other pin of the same side.
 - 3j2+) [CLARIFICATION] On Clock, the nine inner clock faces on one side are considered similar pieces.
+- 3k2+) [ADDITION] The WCA Delegate should not apply a listed exception if they believe the competitor tried to use a non-permitted puzzle on purpose.
+- 3k2b+) [EXAMPLE] Suppose the competitor attempts 10 puzzles and solves 8 successfully. If it is found that two solved puzzles and one unsolved puzzle are not permitted, the competitor is considered to have solved 6 puzzles, at the discretion of the WCA Delegate.
 - 3l+) [ADDITION] Logos may feature any reasonable design that does not give a conspicuous advantage (e.g. encoding information that could be used to cheat), and leave the colored part clearly recognizable. Unconventional logos are only permitted at the discretion of the WCA Delegate.
 - 3l++) [CLARIFICATION] In the past, puzzles with logos have been permitted for blindfolded events. Such puzzles are no longer permitted.
 
diff --git a/wca-regulations.md b/wca-regulations.md
index 0501ad4f..8b2a68e1 100644
--- a/wca-regulations.md
+++ b/wca-regulations.md
@@ -142,8 +142,10 @@ Note: Because Article and Regulation numbers are not reassigned when Regulations
     - 3j2) Definition: Two pieces are similar to each other if they are identical in shape and size, or mirrored in shape and identical in size.
     - 3j3) Corrugated/textured parts which permit the orientation of pieces to be distinguished by feel are not permitted for blindfolded events.
 - 3k) Puzzles should be approved by the WCA Delegate before use in the competition.
-    - 3k1) If a puzzle is found to be not permitted during a round, the competitor must submit a replacement.
-    - 3k2) Penalty for attempts done with puzzles which are not permitted: disqualification of the attempt (DNF). Exception: If a puzzle is found to be not permitted during a round, earlier results may be replaced with an extra attempt, at the discretion of the WCA Delegate.
+    - 3k1) If a non-permitted puzzle is found during a round, the competitor must not continue to use the puzzle, and must submit a replacement.
+    - 3k2) Penalty for attempts done with puzzles which are not permitted: disqualification of the attempt (DNF). The following exceptions apply:
+          - 3k2a) If a non-permitted puzzle is found before a round is complete, affected results in the round may be replaced with extra attempts, at the discretion of the WCA Delegate.
+          - 3k2b) 3x3x3 Multi-Blind: if any puzzles are found to be non-permitted, such puzzles may be individually counted as unsolved (without disqualifying the entire attempt), at the discretion of the WCA Delegate.
 - 3l) A puzzle may have a logo on a colored part. If it does, it must have at most one colored part with a logo. Exception: For blindfolded events, a puzzle must not have a logo.
     - 3l1) The logo must be placed on a center piece. Exceptions for puzzles that do not have center pieces:
         - 3l1a) For Pyraminx and 2x2x2, the logo may be on any piece.