diff --git a/tempest/api/compute/admin/test_instance_usage_audit_log.py b/tempest/api/compute/admin/test_instance_usage_audit_log.py
new file mode 100644
index 0000000..cea6e92
--- /dev/null
+++ b/tempest/api/compute/admin/test_instance_usage_audit_log.py
@@ -0,0 +1,64 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2013 IBM Corporation
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+import datetime
+
+from tempest.api.compute import base
+from tempest.test import attr
+import urllib
+
+
+class InstanceUsageAuditLogTestJSON(base.BaseV2ComputeAdminTest):
+
+    _interface = 'json'
+
+    @classmethod
+    def setUpClass(cls):
+        super(InstanceUsageAuditLogTestJSON, cls).setUpClass()
+        cls.adm_client = cls.os_adm.instance_usages_audit_log_client
+
+    @attr(type='gate')
+    def test_list_instance_usage_audit_logs(self):
+        # list instance usage audit logs
+        resp, body = self.adm_client.list_instance_usage_audit_logs()
+        self.assertEqual(200, resp.status)
+        expected_items = ['total_errors', 'total_instances', 'log',
+                          'num_hosts_running', 'num_hosts_done',
+                          'num_hosts', 'hosts_not_run', 'overall_status',
+                          'period_ending', 'period_beginning',
+                          'num_hosts_not_run']
+        for item in expected_items:
+            self.assertIn(item, body)
+
+    @attr(type='gate')
+    def test_get_instance_usage_audit_log(self):
+        # Get instance usage audit log before specified time
+        now = datetime.datetime.now()
+        resp, body = self.adm_client.get_instance_usage_audit_log(
+            urllib.quote(now.strftime("%Y-%m-%d %H:%M:%S")))
+
+        self.assertEqual(200, resp.status)
+        expected_items = ['total_errors', 'total_instances', 'log',
+                          'num_hosts_running', 'num_hosts_done', 'num_hosts',
+                          'hosts_not_run', 'overall_status', 'period_ending',
+                          'period_beginning', 'num_hosts_not_run']
+        for item in expected_items:
+            self.assertIn(item, body)
+
+
+class InstanceUsageAuditLogTestXML(InstanceUsageAuditLogTestJSON):
+    _interface = 'xml'
diff --git a/tempest/api/compute/admin/test_instance_usage_audit_log_negative.py b/tempest/api/compute/admin/test_instance_usage_audit_log_negative.py
new file mode 100644
index 0000000..dcf41c5
--- /dev/null
+++ b/tempest/api/compute/admin/test_instance_usage_audit_log_negative.py
@@ -0,0 +1,56 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2013 IBM Corporation
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+import datetime
+
+from tempest.api.compute import base
+from tempest import exceptions
+from tempest.test import attr
+import urllib
+
+
+class InstanceUsageAuditLogNegativeTestJSON(base.BaseV2ComputeAdminTest):
+
+    _interface = 'json'
+
+    @classmethod
+    def setUpClass(cls):
+        super(InstanceUsageAuditLogNegativeTestJSON, cls).setUpClass()
+        cls.adm_client = cls.os_adm.instance_usages_audit_log_client
+
+    @attr(type=['negative', 'gate'])
+    def test_instance_usage_audit_logs_with_nonadmin_user(self):
+        # the instance_usage_audit_logs API just can be accessed by admin user
+        self.assertRaises(exceptions.Unauthorized,
+                          self.instance_usages_audit_log_client.
+                          list_instance_usage_audit_logs)
+        now = datetime.datetime.now()
+        self.assertRaises(exceptions.Unauthorized,
+                          self.instance_usages_audit_log_client.
+                          get_instance_usage_audit_log,
+                          urllib.quote(now.strftime("%Y-%m-%d %H:%M:%S")))
+
+    @attr(type=['negative', 'gate'])
+    def test_get_instance_usage_audit_logs_with_invalid_time(self):
+        self.assertRaises(exceptions.BadRequest,
+                          self.adm_client.get_instance_usage_audit_log,
+                          "invalid_time")
+
+
+class InstanceUsageAuditLogNegativeTestXML(
+    InstanceUsageAuditLogNegativeTestJSON):
+    _interface = 'xml'
diff --git a/tempest/api/compute/base.py b/tempest/api/compute/base.py
index 5679a45..46fa639 100644
--- a/tempest/api/compute/base.py
+++ b/tempest/api/compute/base.py
@@ -188,6 +188,8 @@
         cls.availability_zone_client = cls.os.availability_zone_client
         cls.aggregates_client = cls.os.aggregates_client
         cls.services_client = cls.os.services_client
+        cls.instance_usages_audit_log_client = \
+            cls.os.instance_usages_audit_log_client
         cls.hypervisor_client = cls.os.hypervisor_client
         cls.servers_client_v3_auth = cls.os.servers_client_v3_auth
 
diff --git a/tempest/clients.py b/tempest/clients.py
index dd104a7..48948ea 100644
--- a/tempest/clients.py
+++ b/tempest/clients.py
@@ -33,6 +33,8 @@
 from tempest.services.compute.json.hypervisor_client import \
     HypervisorClientJSON
 from tempest.services.compute.json.images_client import ImagesClientJSON
+from tempest.services.compute.json.instance_usage_audit_log_client import \
+    InstanceUsagesAuditLogClientJSON
 from tempest.services.compute.json.interfaces_client import \
     InterfacesClientJSON
 from tempest.services.compute.json.keypairs_client import KeyPairsClientJSON
@@ -56,6 +58,8 @@
     FloatingIPsClientXML
 from tempest.services.compute.xml.hypervisor_client import HypervisorClientXML
 from tempest.services.compute.xml.images_client import ImagesClientXML
+from tempest.services.compute.xml.instance_usage_audit_log_client import \
+    InstanceUsagesAuditLogClientXML
 from tempest.services.compute.xml.interfaces_client import \
     InterfacesClientXML
 from tempest.services.compute.xml.keypairs_client import KeyPairsClientXML
@@ -198,6 +202,8 @@
             self.token_v3_client = V3TokenClientXML(*client_args)
             self.network_client = NetworkClientXML(*client_args)
             self.credentials_client = CredentialsClientXML(*client_args)
+            self.instance_usages_audit_log_client = \
+                InstanceUsagesAuditLogClientXML(*client_args)
 
             if client_args_v3_auth:
                 self.servers_client_v3_auth = ServersClientXML(
@@ -236,6 +242,8 @@
             self.token_v3_client = V3TokenClientJSON(*client_args)
             self.network_client = NetworkClientJSON(*client_args)
             self.credentials_client = CredentialsClientJSON(*client_args)
+            self.instance_usages_audit_log_client = \
+                InstanceUsagesAuditLogClientJSON(*client_args)
 
             if client_args_v3_auth:
                 self.servers_client_v3_auth = ServersClientJSON(
diff --git a/tempest/services/compute/json/instance_usage_audit_log_client.py b/tempest/services/compute/json/instance_usage_audit_log_client.py
new file mode 100644
index 0000000..07ce1bb
--- /dev/null
+++ b/tempest/services/compute/json/instance_usage_audit_log_client.py
@@ -0,0 +1,40 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2013 IBM Corporation
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+import json
+
+from tempest.common.rest_client import RestClient
+
+
+class InstanceUsagesAuditLogClientJSON(RestClient):
+
+    def __init__(self, config, username, password, auth_url, tenant_name=None):
+        super(InstanceUsagesAuditLogClientJSON, self).__init__(
+            config, username, password, auth_url, tenant_name)
+        self.service = self.config.compute.catalog_type
+
+    def list_instance_usage_audit_logs(self):
+        url = 'os-instance_usage_audit_log'
+        resp, body = self.get(url)
+        body = json.loads(body)
+        return resp, body["instance_usage_audit_logs"]
+
+    def get_instance_usage_audit_log(self, time_before):
+        url = 'os-instance_usage_audit_log/%s' % time_before
+        resp, body = self.get(url)
+        body = json.loads(body)
+        return resp, body["instance_usage_audit_log"]
diff --git a/tempest/services/compute/xml/instance_usage_audit_log_client.py b/tempest/services/compute/xml/instance_usage_audit_log_client.py
new file mode 100644
index 0000000..175997b
--- /dev/null
+++ b/tempest/services/compute/xml/instance_usage_audit_log_client.py
@@ -0,0 +1,41 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2013 IBM Corporation
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+from lxml import etree
+
+from tempest.common.rest_client import RestClientXML
+from tempest.services.compute.xml.common import xml_to_json
+
+
+class InstanceUsagesAuditLogClientXML(RestClientXML):
+
+    def __init__(self, config, username, password, auth_url, tenant_name=None):
+        super(InstanceUsagesAuditLogClientXML, self).__init__(
+            config, username, password, auth_url, tenant_name)
+        self.service = self.config.compute.catalog_type
+
+    def list_instance_usage_audit_logs(self):
+        url = 'os-instance_usage_audit_log'
+        resp, body = self.get(url, self.headers)
+        instance_usage_audit_logs = xml_to_json(etree.fromstring(body))
+        return resp, instance_usage_audit_logs
+
+    def get_instance_usage_audit_log(self, time_before):
+        url = 'os-instance_usage_audit_log/%s' % time_before
+        resp, body = self.get(url, self.headers)
+        instance_usage_audit_log = xml_to_json(etree.fromstring(body))
+        return resp, instance_usage_audit_log