diff --git a/modules/ROOT/pages/changes_guide.adoc b/modules/ROOT/pages/changes_guide.adoc
index 78d6e70..0c6ce13 100644
--- a/modules/ROOT/pages/changes_guide.adoc
+++ b/modules/ROOT/pages/changes_guide.adoc
@@ -178,7 +178,11 @@ If you feature is not completed in time we want to assure others that other part
 A contigency plan should include:
 
 * Contingency mechanism: (What to do?  Who will do it?)
-* Contingency deadline: When is the last time the contingency mechanism can be put in place?  This will typically be the beta freeze.
+* Contingency deadline: When is the last time the contingency mechanism can be put in place?
+
+TIP: The contingency deadline will most likely be the beta freeze.
+In some cases, it may be more appropriate to set it to the start of the mass rebuild or branch day.
+Rarely, you can use final freeze, but this should only be used for Changes that are trivially-revertable.
 
 === Documentation
 *REQUIRED FOR SYSTEM-WIDE CHANGES*