diff --git a/app/domains.yml b/app/domains.yml
index a7c24e0d6..5ef0d5221 100644
--- a/app/domains.yml
+++ b/app/domains.yml
@@ -291,6 +291,10 @@ bl.uk:
   owner: British Library
   crown: false
   agreement_signed: false
+nao.org.uk:
+  owner: National Audit Office
+  crown: false
+  agreement_signed: false
 
 # Local Government
 aberdeencityandshire-sdpa.gov.uk:
diff --git a/app/email_domains.yml b/app/email_domains.yml
index 8beeae4db..ce085493a 100644
--- a/app/email_domains.yml
+++ b/app/email_domains.yml
@@ -45,3 +45,4 @@
 - socialworkengland.org.uk 
 - careinspectorate.com
 - unitypartnership.com 
+- nao.org.uk