diff --git a/api-ref/source/v3-ext/federation.inc b/api-ref/source/v3-ext/federation.inc
index 5d526b894e..7ffc63ed25 100644
--- a/api-ref/source/v3-ext/federation.inc
+++ b/api-ref/source/v3-ext/federation.inc
@@ -300,54 +300,8 @@ to ``ss:mem:``.
 
 .. include:: federation/service-provider/sp.inc
 
+.. include:: federation/projects-domains/projects-domains.inc
 
-.. TODO(samueldmq): This is the Listing Projects and Domains API, move it to its
-   own file.
-.. **Deprecated in v1.1**. This section is deprecated as the functionality is
-   available in the core Identity API.
-
-List projects a federated user can access
-=========================================
-
-.. rest_method::  GET /v3/OS-FEDERATION/projects
-
-Normal response codes: 200
-
-**Deprecated in v1.1**. Use core ``GET /auth/projects``. This call has the same
-response format.
-
-Returns a collection of projects to which the federated user has authorization
-to access. To access this resource, an unscoped token is used, the user can
-then select a project and request a scoped token. Note that only enabled
-projects will be returned.
-
-Response Example
-----------------
-
-.. literalinclude:: ./samples/OS-FEDERATION/project-list-response.json
-   :language: javascript
-
-
-List domains a federated user can access
-========================================
-
-.. rest_method::  GET /v3/OS-FEDERATION/domains
-
-Normal response codes: 200
-
-**Deprecated in v1.1**. Use core ``GET /auth/domains``. This call has the same
-response format.
-
-Returns a collection of domains to which the federated user has authorization
-to access. To access this resource, an unscoped token is used, the user can
-then select a domain and request a scoped token. Note that only enabled domains
-will be returned.
-
-Response Example
-----------------
-
-.. literalinclude:: ./samples/OS-FEDERATION/domain-list-response.json
-   :language: javascript
 
 .. TODO(samueldmq): This is the Federation Authentication API, move it to its
    own file.
diff --git a/api-ref/source/v3-ext/federation/projects-domains/projects-domains.inc b/api-ref/source/v3-ext/federation/projects-domains/projects-domains.inc
new file mode 100644
index 0000000000..823a8796d8
--- /dev/null
+++ b/api-ref/source/v3-ext/federation/projects-domains/projects-domains.inc
@@ -0,0 +1,47 @@
+.. -*- rst -*-
+
+.. **Deprecated in v1.1**. This section is deprecated as the functionality is
+   available in the core Identity API.
+
+List projects a federated user can access
+=========================================
+
+.. rest_method::  GET /v3/OS-FEDERATION/projects
+
+Normal response codes: 200
+
+**Deprecated in v1.1**. Use core ``GET /auth/projects``. This call has the same
+response format.
+
+Returns a collection of projects to which the federated user has authorization
+to access. To access this resource, an unscoped token is used, the user can
+then select a project and request a scoped token. Note that only enabled
+projects will be returned.
+
+Response Example
+----------------
+
+.. literalinclude:: federation/projects-domains/samples/project-list-response.json
+   :language: javascript
+
+
+List domains a federated user can access
+========================================
+
+.. rest_method::  GET /v3/OS-FEDERATION/domains
+
+Normal response codes: 200
+
+**Deprecated in v1.1**. Use core ``GET /auth/domains``. This call has the same
+response format.
+
+Returns a collection of domains to which the federated user has authorization
+to access. To access this resource, an unscoped token is used, the user can
+then select a domain and request a scoped token. Note that only enabled domains
+will be returned.
+
+Response Example
+----------------
+
+.. literalinclude:: federation/projects-domains/samples/domain-list-response.json
+   :language: javascript
diff --git a/api-ref/source/v3-ext/samples/OS-FEDERATION/domain-list-response.json b/api-ref/source/v3-ext/federation/projects-domains/samples/domain-list-response.json
similarity index 100%
rename from api-ref/source/v3-ext/samples/OS-FEDERATION/domain-list-response.json
rename to api-ref/source/v3-ext/federation/projects-domains/samples/domain-list-response.json
diff --git a/api-ref/source/v3-ext/samples/OS-FEDERATION/project-list-response.json b/api-ref/source/v3-ext/federation/projects-domains/samples/project-list-response.json
similarity index 100%
rename from api-ref/source/v3-ext/samples/OS-FEDERATION/project-list-response.json
rename to api-ref/source/v3-ext/federation/projects-domains/samples/project-list-response.json