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diff --git a/src/components/application_manager/include/application_manager/resumption/pending_resumption_handler.h b/src/components/application_manager/include/application_manager/resumption/pending_resumption_handler.h
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+/*
+ * Copyright (c) 2020, Ford Motor Company
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * Neither the name of the Ford Motor Company nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef SRC_COMPONENTS_APPLICATION_MANAGER_INCLUDE_APPLICATION_MANAGER_RESUMPTION_PENDING_RESUMPTION_HANDLER_H
+#define SRC_COMPONENTS_APPLICATION_MANAGER_INCLUDE_APPLICATION_MANAGER_RESUMPTION_PENDING_RESUMPTION_HANDLER_H
+#include "application_manager/app_extension.h"
+#include "application_manager/application_manager.h"
+#include "application_manager/event_engine/event_observer.h"
+
+namespace resumption {
+
+namespace app_mngr = application_manager;
+
+/**
+ * @brief The PendingResumptionHandler class responsibility to avoid
+ * duplication of subscription requests to HMI if multiple applications
+ * are registering
+ */
+class PendingResumptionHandler
+    : public application_manager::event_engine::EventObserver {
+ public:
+  PendingResumptionHandler(app_mngr::ApplicationManager& application_manager);
+
+  virtual ~PendingResumptionHandler() {}
+
+  /**
+   * @brief HandleResumptionSubscriptionRequest handles all subscriptions
+   * requests, which might be send to HMI under certain conditions
+   * @param extension reference to corresponding application extension
+   * @param subscriber callback for subscribing
+   * @param app reference to application owner
+   */
+  virtual void HandleResumptionSubscriptionRequest(
+      app_mngr::AppExtension& extension,
+      application_manager::Application& app) = 0;
+
+  /**
+   * @brief OnResumptionRevert is a callback to be called in the case, when
+   * resumption is failed for current application.
+   */
+  virtual void OnResumptionRevert() = 0;
+
+  resumption::ResumptionDataProcessor& resumption_data_processor();
+
+ protected:
+  /**
+   * @brief MakeResumptionRequest creates resumption request
+   * @param corr_id correlation ID
+   * @param function_id function ID
+   * @param message Message to HMI
+   * @return instance of ResumptionRequest class
+   */
+  ResumptionRequest MakeResumptionRequest(
+      const uint32_t corr_id,
+      const hmi_apis::FunctionID::eType function_id,
+      const smart_objects::SmartObject& message);
+
+  app_mngr::ApplicationManager& application_manager_;
+};
+}  //  namespace resumption
+
+#endif  // SRC_COMPONENTS_APPLICATION_MANAGER_INCLUDE_APPLICATION_MANAGER_RESUMPTION_PENDING_RESUMPTION_HANDLER_H