diff --git a/chassis_state_manager_main.cpp b/chassis_state_manager_main.cpp
index c78eea4..eac4fd4 100644
--- a/chassis_state_manager_main.cpp
+++ b/chassis_state_manager_main.cpp
@@ -2,26 +2,53 @@
 
 #include "chassis_state_manager.hpp"
 
+#include <getopt.h>
+
 #include <sdbusplus/bus.hpp>
 
 #include <cstdlib>
 #include <exception>
 #include <iostream>
 
-int main()
+int main(int argc, char** argv)
 {
+    size_t chassisId = 0;
+    int arg;
+    int optIndex = 0;
+    static struct option longOpts[] = {{"chassis", required_argument, 0, 'c'},
+                                       {0, 0, 0, 0}};
+
+    while ((arg = getopt_long(argc, argv, "c:", longOpts, &optIndex)) != -1)
+    {
+        switch (arg)
+        {
+            case 'c':
+                chassisId = std::stoul(optarg);
+                break;
+            default:
+                break;
+        }
+    }
+
     auto bus = sdbusplus::bus::new_default();
 
-    // For now, we only have one instance of the chassis
-    auto objPathInst = std::string{CHASSIS_OBJPATH} + '0';
+    auto chassisBusName =
+        std::string{CHASSIS_BUSNAME} + std::to_string(chassisId);
+    auto objPathInst = std::string{CHASSIS_OBJPATH} + std::to_string(chassisId);
 
     // Add sdbusplus ObjectManager.
     sdbusplus::server::manager::manager objManager(bus, objPathInst.c_str());
+    phosphor::state::manager::Chassis manager(bus, objPathInst.c_str(),
+                                              chassisId);
 
-    phosphor::state::manager::Chassis manager(bus, objPathInst.c_str());
+    // For backwards compatibility, request a busname without chassis id if
+    // input id is 0.
+    if (chassisId == 0)
+    {
+        bus.request_name(CHASSIS_BUSNAME);
+    }
 
-    bus.request_name(CHASSIS_BUSNAME);
+    bus.request_name(chassisBusName.c_str());
     manager.startPOHCounter();
-
     return 0;
 }