diff --git a/Haas_Lathes_BIDC/Bechtel ST-20.cps b/Haas_Lathes_BIDC/Bechtel ST-20.cps
index 3020843..d5048de 100644
--- a/Haas_Lathes_BIDC/Bechtel ST-20.cps	
+++ b/Haas_Lathes_BIDC/Bechtel ST-20.cps	
@@ -2179,6 +2179,10 @@ function onSection() {
     writeRetract(currentSection, true); // retract in Z also
   }
 
+  if (hasParameter("notes") && getParameter("notes").toUpperCase().indexOf("APPROVED") <= -1) {
+    throw "Operation \"" + getParameter("operation-comment") + "\" not approved. See a Peer Mentor."
+  }
+  
   if (staticProperties.showNotes && hasParameter("notes")) {
     var notes = getParameter("notes");
     if (notes) {
diff --git a/Haas_Lathes_BIDC/Bechtel ST-20Y.cps b/Haas_Lathes_BIDC/Bechtel ST-20Y.cps
index 6b1fb35..1a3baf0 100644
--- a/Haas_Lathes_BIDC/Bechtel ST-20Y.cps	
+++ b/Haas_Lathes_BIDC/Bechtel ST-20Y.cps	
@@ -2263,6 +2263,11 @@ function onSection() {
     writeRetract(currentSection, true); // retract in Z also
   }
 
+  if (hasParameter("notes") && getParameter("notes").toUpperCase().indexOf("APPROVED") <= -1) {
+    throw "Operation \"" + getParameter("operation-comment") + "\" not approved. See a Peer Mentor."
+  }
+
+
   if (staticProperties.showNotes && hasParameter("notes")) {
     var notes = getParameter("notes");
     if (notes) {