diff --git a/process_implementations/hkust/cleanliness_levels.yaml b/process_implementations/hkust/cleanliness_levels.yaml
index 367f48329e273a9caf703e9be75f2e70af855271..d88a06d28129742b532d64a17179a24f4f79ded9 100644
--- a/process_implementations/hkust/cleanliness_levels.yaml
+++ b/process_implementations/hkust/cleanliness_levels.yaml
@@ -5,6 +5,10 @@ levels:
         clean/semi-clean:
                 - clean
                 - semi-clean
+        semi-clean/non-standard:
+                - clean
+                - semi-clean
+                - non-standard
         non-standard:
                 - clean
                 - semi-clean