diff --git a/phosphor-regulators/src/chassis.cpp b/phosphor-regulators/src/chassis.cpp
new file mode 100644
index 0000000..3787365
--- /dev/null
+++ b/phosphor-regulators/src/chassis.cpp
@@ -0,0 +1,31 @@
+/**
+ * Copyright © 2020 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.
+ */
+
+#include "chassis.hpp"
+
+namespace phosphor::power::regulators
+{
+
+void Chassis::addToIDMap(IDMap& idMap)
+{
+    // Add devices and their rails to the map
+    for (std::unique_ptr<Device>& device : devices)
+    {
+        device->addToIDMap(idMap);
+    }
+}
+
+} // namespace phosphor::power::regulators