diff --git a/phosphor-regulators/src/config_file_parser.cpp b/phosphor-regulators/src/config_file_parser.cpp
index e458ba7..5f0181e 100644
--- a/phosphor-regulators/src/config_file_parser.cpp
+++ b/phosphor-regulators/src/config_file_parser.cpp
@@ -120,9 +120,8 @@
     }
     else if (element.contains("not"))
     {
-        // TODO: Not implemented yet
-        // action = parseNot(element["not"]);
-        // ++propertyCount;
+        action = parseNot(element["not"]);
+        ++propertyCount;
     }
     else if (element.contains("or"))
     {
@@ -576,6 +575,14 @@
     return std::make_unique<I2CWriteBytesAction>(reg, values, masks);
 }
 
+std::unique_ptr<NotAction> parseNot(const json& element)
+{
+    // Required action to execute
+    std::unique_ptr<Action> action = parseAction(element);
+
+    return std::make_unique<NotAction>(std::move(action));
+}
+
 std::unique_ptr<PMBusWriteVoutCommandAction>
     parsePMBusWriteVoutCommand(const json& element)
 {