diff --git a/geps/gep-3155/metadata.yaml b/geps/gep-3155/metadata.yaml
new file mode 100644
index 0000000000..41273c8c2d
--- /dev/null
+++ b/geps/gep-3155/metadata.yaml
@@ -0,0 +1,13 @@
+apiVersion: internal.gateway.networking.k8s.io/v1alpha1
+kind: GEPDetails
+number: 3155
+name: Complete Backend mutual TLS Configuration
+status: Implementable
+authors:
+  - mkosieradzki
+  - robscott
+relationships:
+  seeAlso:
+    - number: 2907
+      name: TLS Configuration Placement and Terminology
+      description: Will use some of the terminology defined by this GEP.
diff --git a/mkdocs.yml b/mkdocs.yml
index 54726a6d91..9ffc31b4b5 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -125,6 +125,7 @@ nav:
       - geps/gep-2649/index.md
     - Implementable:
       - geps/gep-995/index.md
+      - geps/gep-3155/index.md
     - Experimental:
       - geps/gep-1016/index.md
       - geps/gep-1619/index.md