diff --git a/occ_presence.hpp b/occ_presence.hpp
new file mode 100644
index 0000000..321dacb
--- /dev/null
+++ b/occ_presence.hpp
@@ -0,0 +1,52 @@
+#pragma once
+
+#include "occ_errors.hpp"
+namespace open_power
+{
+namespace occ
+{
+
+class Manager;
+
+/** @class Presence
+ *  @brief Monitors the number of OCCs present
+ */
+class Presence : public Error
+{
+    public:
+        Presence() = delete;
+        Presence(const Presence&) = delete;
+        Presence& operator=(const Presence&) = delete;
+        Presence(Presence&&) = default;
+        Presence& operator=(Presence&&) = default;
+
+        /** @brief Constructs the Presence object
+         *
+         *  @param[in] event    - Reference to sd_event unique_ptr
+         *  @param[in] file     - File used by driver to communicate errors
+         *  @param[in] mgr      - OCC manager instance
+         *  @param[in] callBack - Optional function callback on error condition
+         */
+        Presence(EventPtr& event,
+              const fs::path& file,
+              const Manager& mgr,
+              std::function<void()> callBack = nullptr) :
+            Error(event, file, callBack),
+            manager(mgr)
+        {
+            // Nothing to do here.
+        }
+
+    private:
+        /** Store the manager instance to enable getting number of OCCs */
+        const Manager& manager;
+
+        /** @brief When the error event is received, analyzes it
+         *         and makes a callback to error handler if the
+         *         content denotes an error condition
+         */
+        void analyzeEvent() override;
+};
+
+} // namespace occ
+} // namespace open_power