diff --git a/doc/source/index.rst b/doc/source/index.rst
index 75cd16e7..b7b9f6e1 100644
--- a/doc/source/index.rst
+++ b/doc/source/index.rst
@@ -4,6 +4,14 @@
 Volume Service Specifications (cinder)
 ======================================
 
+Train approved specs:
+
+.. toctree::
+   :glob:
+   :maxdepth: 1
+
+   specs/train/*
+
 Stein approved specs:
 
 .. toctree::
diff --git a/specs/train/.placeholder b/specs/train/.placeholder
new file mode 100644
index 00000000..e69de29b