diff --git a/standard/docs/en/extensions/party_details.md b/standard/docs/en/extensions/party_details.md
new file mode 100644
index 000000000..46fc384a3
--- /dev/null
+++ b/standard/docs/en/extensions/party_details.md
@@ -0,0 +1,10 @@
+# Organization details
+
+Each of the entries in the [parties](../../../schema/reference/#parties) array contains a ```details``` object. This can be extended using community extensions to provide detailed classification of the organizations and other entities involved in a contracting process.
+
+A list of available extensions (tagged as 'partyDetail') can be found below:
+
+```eval_rst
+.. extensionlist:: The following extensions to milestone are available
+   :list: partyDetail
+```
\ No newline at end of file
diff --git a/standard/docs/en/schema/reference.md b/standard/docs/en/schema/reference.md
index d31ef9381..332f0d241 100644
--- a/standard/docs/en/schema/reference.md
+++ b/standard/docs/en/schema/reference.md
@@ -89,6 +89,10 @@ The following details can be provided for each party.
    :file: standard/docs/field_definitions/release-organization.csv
 ```
 
+#### Details 
+
+Detailed classification of parties can be provided using one or more [party detail extensions](../../../extensions/party_details/).
+
 ### Planning
 
 The planning section can be used to describe the background to a contracting process. This may include details of the budget from which funds are drawn, or related projects for this contracting process. Background documents such as a needs assessment, feasibility study and project plan can also be included in this section.