diff --git a/current_rules b/current_rules
index b06e1d7..895009a 100644
--- a/current_rules
+++ b/current_rules
@@ -511,3 +511,13 @@ History:
 Mutable Rule 309, Jul. 26 2018
 
 ----------------------------------------------------------------------
+
+Rule 316 (Mutable)
+
+      "Mutable rule" is now synonymous with scrolls or clay tablets.
+      "Immutable rule" is now synonymous with Stone Tablet. All current
+      mutable rules gain the rule style of scroll, and all current
+      immutable rules gain the rule style of stone tablet.
+
+History:
+Mutable Rule 316, Aug. 2 2018