diff --git a/phosphor-regulators/src/actions/not_action.hpp b/phosphor-regulators/src/actions/not_action.hpp
new file mode 100644
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+++ b/phosphor-regulators/src/actions/not_action.hpp
@@ -0,0 +1,89 @@
+/**
+ * Copyright © 2019 IBM Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#pragma once
+
+#include "action.hpp"
+#include "action_environment.hpp"
+
+#include <memory>
+#include <utility>
+
+namespace phosphor::power::regulators
+{
+
+/**
+ * @class NotAction
+ *
+ * Executes an action and negates its return value.
+ *
+ * Implements the "not" action in the JSON config file.
+ */
+class NotAction : public Action
+{
+  public:
+    // Specify which compiler-generated methods we want
+    NotAction() = delete;
+    NotAction(const NotAction&) = delete;
+    NotAction(NotAction&&) = delete;
+    NotAction& operator=(const NotAction&) = delete;
+    NotAction& operator=(NotAction&&) = delete;
+    virtual ~NotAction() = default;
+
+    /**
+     * Constructor.
+     *
+     * @param action action to execute
+     */
+    explicit NotAction(std::unique_ptr<Action> action) :
+        action{std::move(action)}
+    {
+    }
+
+    /**
+     * Executes the action specified in the constructor.
+     *
+     * Returns the opposite of the return value from the action.  For example,
+     * if the action returned true, then false will be returned.
+     *
+     * Throws an exception if an error occurs and the action cannot be
+     * successfully executed.
+     *
+     * @param environment action execution environment
+     * @return negated return value from action executed
+     */
+    virtual bool execute(ActionEnvironment& environment) override
+    {
+        return !(action->execute(environment));
+    }
+
+    /**
+     * Returns the action to execute.
+     *
+     * @return action
+     */
+    const std::unique_ptr<Action>& getAction() const
+    {
+        return action;
+    }
+
+  private:
+    /**
+     * Action to execute.
+     */
+    std::unique_ptr<Action> action;
+};
+
+} // namespace phosphor::power::regulators