diff --git a/tier4_system_msgs/msg/ElectionCommunication.msg b/tier4_system_msgs/msg/ElectionCommunication.msg
deleted file mode 100644
index e4ff46b..0000000
--- a/tier4_system_msgs/msg/ElectionCommunication.msg
+++ /dev/null
@@ -1,28 +0,0 @@
-# node_id
-uint8 MAIN_ECU = 0
-uint8 SUB_ECU = 1
-uint8 MAIN_VCU = 2
-uint8 SUB_VCU = 3
-
-# type
-uint8 HEARTBEAT_MSG = 0
-uint8 ELECTION_MSG = 1
-uint8 REPLY_MSG = 2
-uint8 LEADER_MSG = 3
-
-# link
-# The link is a 4-bit data.
-# In the case of a leader message, it represents the selected path,
-# and in the case of an election message or a replay message, it represents the connected status.
-# The bits represent the state of the Main ECU, Sub ECU, Main VCU, and Sub VCU in order from the leading bit.
-# For example:
-# If this message is a reply message with link=0x1010,
-# the node that sent this message is connected only to the Main ECU and Main VCU.
-
-builtin_interfaces/Time stamp
-uint8 node_id                   # msg sender
-uint8 type                      # msg type
-uint8 term                      # term of election msg
-uint8 link                      # For leader msg, the selected path; for election or reply msg, the connection status
-uint8 heartbeat                 # heartbeat from 0 to 15
-uint8 checksum                  # checksum for CAN data