diff --git a/extensions/openpower-pels/pce_identity.hpp b/extensions/openpower-pels/pce_identity.hpp
new file mode 100644
index 0000000..4503764
--- /dev/null
+++ b/extensions/openpower-pels/pce_identity.hpp
@@ -0,0 +1,125 @@
+#pragma once
+
+#include "mtms.hpp"
+#include "stream.hpp"
+
+namespace openpower
+{
+namespace pels
+{
+namespace src
+{
+
+/**
+ * @class PCEIdentity
+ *
+ * This represents the PCE (Power Controlling Enclosure) Identity
+ * substructure in the callout subsection of the SRC PEL section.
+ *
+ * It contains the name and machine type/model/SN of that enclosure.
+ *
+ * It is only used for errors in an I/O drawer where another enclosure
+ * may control its power.  It is not used in BMC errors and so will
+ * never be created by the BMC, but only unflattened in errors it
+ * receives from the host.
+ */
+class PCEIdentity
+{
+  public:
+    PCEIdentity() = delete;
+    ~PCEIdentity() = default;
+    PCEIdentity(const PCEIdentity&) = default;
+    PCEIdentity& operator=(const PCEIdentity&) = default;
+    PCEIdentity(PCEIdentity&&) = default;
+    PCEIdentity& operator=(PCEIdentity&&) = default;
+
+    /**
+     * @brief Constructor
+     *
+     * Fills in this class's data fields from the stream.
+     *
+     * @param[in] pel - the PEL data stream
+     */
+    explicit PCEIdentity(Stream& pel);
+
+    /**
+     * @brief Flatten the object into the stream
+     *
+     * @param[in] stream - The stream to write to
+     */
+    void flatten(Stream& pel);
+
+    /**
+     * @brief Returns the size of this structure when flattened into a PEL
+     *
+     * @return size_t - The size of the structure
+     */
+    size_t flattenedSize()
+    {
+        return _size;
+    }
+
+    /**
+     * @brief The type identifier value of this structure.
+     */
+    static const uint16_t substructureType = 0x5045; // "PE"
+
+    /**
+     * @brief Returns the enclosure name
+     *
+     * @return std::string - The enclosure name
+     */
+    std::string enclosureName() const
+    {
+        // _pceName is NULL terminated
+        std::string name{static_cast<const char*>(_pceName.data())};
+        return name;
+    }
+
+    /**
+     * @brief Returns the MTMS sub structure
+     *
+     * @return const MTMS& - The machine type/model/SN structure.
+     */
+    const MTMS& mtms() const
+    {
+        return _mtms;
+    }
+
+  private:
+    /**
+     * @brief The callout substructure type field. Will be 'PE'.
+     */
+    uint16_t _type;
+
+    /**
+     * @brief The size of this callout structure.
+     *
+     * Always a multiple of 4.
+     */
+    uint8_t _size;
+
+    /**
+     * @brief The flags byte of this substructure.
+     *
+     * Always 0 for this structure.
+     */
+    uint8_t _flags;
+
+    /**
+     * @brief The structure that holds the power controlling enclosure's
+     *        machine type, model, and serial number.
+     */
+    MTMS _mtms;
+
+    /**
+     * @brief The name of the power controlling enclosure.
+     *
+     * Null terminated and padded with NULLs to a 4 byte boundary.
+     */
+    std::vector<char> _pceName;
+};
+
+} // namespace src
+} // namespace pels
+} // namespace openpower