diff --git a/can_messages.asciipb b/can_messages.asciipb
index eb4ef77..be9c81d 100644
--- a/can_messages.asciipb
+++ b/can_messages.asciipb
@@ -684,6 +684,26 @@ msg {
   }
 }
 
-# IDs: 61-63 Reserved
+# IDs: 61-62 Reserved
+
+# Common message format for all babydriver messages: see https://uwmidsun.atlassian.net/l/c/XHjUAAK2
+msg {
+  id: 63
+  source: BABYDRIVER
+  # target: BABYDRIVER
+  msg_name: "babydriver"
+  can_data {
+    u8 {
+      field_name_1: "id"
+      field_name_2: "data0"
+      field_name_3: "data1"
+      field_name_4: "data2"
+      field_name_5: "data3"
+      field_name_6: "data4"
+      field_name_7: "data5"
+      field_name_8: "data6"
+    }
+  }
+}
 
 # No ID may exceed 63. 
diff --git a/schema/can.proto b/schema/can.proto
index 5ff2129..5ca033e 100644
--- a/schema/can.proto
+++ b/schema/can.proto
@@ -62,6 +62,8 @@ message CanMsg {
     CHARGER = 10;
     IMU = 11;
     POWER_SELECTION = 12;
+
+    BABYDRIVER = 15;
   }
 
   uint32 raw_id = 1;  // 0-2047 only