diff --git a/control/json/triggers/parameter.hpp b/control/json/triggers/parameter.hpp
new file mode 100644
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+++ b/control/json/triggers/parameter.hpp
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+/**
+ * Copyright © 2021 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 "group.hpp"
+#include "trigger_aliases.hpp"
+
+#include <nlohmann/json.hpp>
+
+#include <memory>
+#include <vector>
+
+namespace phosphor::fan::control::json::trigger::parameter
+{
+
+/**
+ * @brief Trigger to process an event after a parameter changes
+ *
+ * @param[in] jsonObj - JSON object for the trigger
+ * @param[in] eventName - Name of event associated to the signal
+ * @param[in] actions - Actions associated with the trigger
+ */
+enableTrigger
+    triggerParameter(const json& jsonObj, const std::string& eventName,
+                     std::vector<std::unique_ptr<ActionBase>>& actions);
+
+} // namespace phosphor::fan::control::json::trigger::parameter