diff --git a/51.md b/51.md
index d319b815..b3256f79 100644
--- a/51.md
+++ b/51.md
@@ -18,9 +18,6 @@ stored in the `.content`.
 
 ### Generic lists
 
-The kind `30001` has been reserved for generic lists. These must be accompanied by a `d` tag identifying the
-list, but these have no standard meaning and are generally client-specific (except in the standard cases
-specified below).
 
 ## Standard lists