diff --git a/extensions/openpower-pels/callouts.cpp b/extensions/openpower-pels/callouts.cpp
new file mode 100644
index 0000000..8a519e2
--- /dev/null
+++ b/extensions/openpower-pels/callouts.cpp
@@ -0,0 +1,36 @@
+#include "callouts.hpp"
+
+namespace openpower
+{
+namespace pels
+{
+namespace src
+{
+
+Callouts::Callouts(Stream& pel)
+{
+    pel >> _subsectionID >> _subsectionFlags >> _subsectionWordLength;
+
+    size_t currentLength = sizeof(_subsectionID) + sizeof(_subsectionFlags) +
+                           sizeof(_subsectionWordLength);
+
+    while ((_subsectionWordLength * 4) > currentLength)
+    {
+        _callouts.emplace_back(new Callout(pel));
+        currentLength += _callouts.back()->flattenedSize();
+    }
+}
+
+void Callouts::flatten(Stream& pel)
+{
+    pel << _subsectionID << _subsectionFlags << _subsectionWordLength;
+
+    for (auto& callout : _callouts)
+    {
+        callout->flatten(pel);
+    }
+}
+
+} // namespace src
+} // namespace pels
+} // namespace openpower