diff --git a/Error-Codes.md b/Error-Codes.md
index 4860504..fa2be3b 100644
--- a/Error-Codes.md
+++ b/Error-Codes.md
@@ -24,6 +24,8 @@ Code | Name
 140 | Command does not exist.
 141 | Command is deprecated.
 142 | Invalid arguments for command.
+143 | Command is temporarily unavailable. (such as waiting for required components to start)
+144 | Command is permanently unavailable. (such as when required component was intentionally configured not to start)
 **2xx** | **Networking**
 **20x** | General connectivity.
 201 | No internet connection.