diff --git a/otc_metadata/data/documents/ddm-api-ref.yaml b/otc_metadata/data/documents/ddm-api-ref.yaml
index 1165d41..9c08247 100644
--- a/otc_metadata/data/documents/ddm-api-ref.yaml
+++ b/otc_metadata/data/documents/ddm-api-ref.yaml
@@ -1,6 +1,6 @@
 ---
 hc_location: api/ddm
-environment: internal
+environment: public
 html_location: docs/ddm/api-ref
 link: /distributed-database-middleware/api-ref/
 pdf_name: ddm-api-ref
diff --git a/otc_metadata/data/documents/ddm-umn.yaml b/otc_metadata/data/documents/ddm-umn.yaml
index accc200..4e7c3f1 100644
--- a/otc_metadata/data/documents/ddm-umn.yaml
+++ b/otc_metadata/data/documents/ddm-umn.yaml
@@ -1,6 +1,6 @@
 ---
 hc_location: usermanual/ddm
-environment: internal
+environment: public
 html_location: docs/ddm/umn
 link: /distributed-database-middleware/umn/
 pdf_name: ddm-umn
diff --git a/otc_metadata/data/services/ddm.yaml b/otc_metadata/data/services/ddm.yaml
index 5a93657..893e39a 100644
--- a/otc_metadata/data/services/ddm.yaml
+++ b/otc_metadata/data/services/ddm.yaml
@@ -1,5 +1,5 @@
 ---
-environment: internal
+environment: public
 repositories:
 - environment: internal
   repo: docs/distributed-database-middleware