diff --git a/releasenotes/notes/cli-tests-v3fixes-fb38189cefd64213.yaml b/releasenotes/notes/cli-tests-v3fixes-fb38189cefd64213.yaml
new file mode 100644
index 0000000..e3443c8
--- /dev/null
+++ b/releasenotes/notes/cli-tests-v3fixes-fb38189cefd64213.yaml
@@ -0,0 +1,9 @@
+---
+other:
+  - |
+    The CLIClient class, when it calls a command line client, uses
+    --os-project-name instead of --os-tenant-name for the project, and
+    passes --os-identity-api-version (default empty).
+    All CLI clients still available in supported releases of OpenStack
+    which are wrapped by the cmd_with_auth() method support those
+    switches.
diff --git a/tempest/lib/cli/base.py b/tempest/lib/cli/base.py
index f39ecbc..3a97801 100644
--- a/tempest/lib/cli/base.py
+++ b/tempest/lib/cli/base.py
@@ -101,12 +101,15 @@
     :type project_domain_name: string
     :param project_domain_id: Project's domain ID
     :type project_domain_id: string
+    :param identity_api_version: Version of the Identity API
+    :type identity_api_version: string
     """
 
     def __init__(self, username='', password='', tenant_name='', uri='',
                  cli_dir='', insecure=False, prefix='', user_domain_name=None,
                  user_domain_id=None, project_domain_name=None,
-                 project_domain_id=None, *args, **kwargs):
+                 project_domain_id=None, identity_api_version=None, *args,
+                 **kwargs):
         """Initialize a new CLIClient object."""
         super(CLIClient, self).__init__()
         self.cli_dir = cli_dir if cli_dir else '/usr/bin'
@@ -120,6 +123,7 @@
         self.user_domain_id = user_domain_id
         self.project_domain_name = project_domain_name
         self.project_domain_id = project_domain_id
+        self.identity_api_version = identity_api_version
 
     def nova(self, action, flags='', params='', fail_ok=False,
              endpoint_type='publicURL', merge_stderr=False):
@@ -374,12 +378,15 @@
         :param merge_stderr:  if True the stderr buffer is merged into stdout
         :type merge_stderr: boolean
         """
-        creds = ('--os-username %s --os-tenant-name %s --os-password %s '
+        creds = ('--os-username %s --os-project-name %s --os-password %s '
                  '--os-auth-url %s' %
                  (self.username,
                   self.tenant_name,
                   self.password,
                   self.uri))
+        if self.identity_api_version:
+            creds += ' --os-identity-api-version %s' % (
+                self.identity_api_version)
         if self.user_domain_name is not None:
             creds += ' --os-user-domain-name %s' % self.user_domain_name
         if self.user_domain_id is not None:
diff --git a/tempest/tests/lib/cli/test_execute.py b/tempest/tests/lib/cli/test_execute.py
index c276386..c069af5 100644
--- a/tempest/tests/lib/cli/test_execute.py
+++ b/tempest/tests/lib/cli/test_execute.py
@@ -125,3 +125,27 @@
                          mock_execute.call_args[0][2])
         self.assertNotIn('--os-project-domain-name',
                          mock_execute.call_args[0][2])
+
+    @mock.patch.object(cli_base, 'execute')
+    def test_execute_with_default_api_version(self, mock_execute):
+        cli = cli_base.CLIClient()
+        cli.openstack('action')
+        self.assertEqual(mock_execute.call_count, 1)
+        self.assertNotIn('--os-identity-api-version ',
+                         mock_execute.call_args[0][2])
+
+    @mock.patch.object(cli_base, 'execute')
+    def test_execute_with_empty_api_version(self, mock_execute):
+        cli = cli_base.CLIClient(identity_api_version='')
+        cli.openstack('action')
+        self.assertEqual(mock_execute.call_count, 1)
+        self.assertNotIn('--os-identity-api-version ',
+                         mock_execute.call_args[0][2])
+
+    @mock.patch.object(cli_base, 'execute')
+    def test_execute_with_explicit_api_version(self, mock_execute):
+        cli = cli_base.CLIClient(identity_api_version='0.0')
+        cli.openstack('action')
+        self.assertEqual(mock_execute.call_count, 1)
+        self.assertIn('--os-identity-api-version 0.0 ',
+                      mock_execute.call_args[0][2])