diff --git a/tempest/api/compute/admin/test_quotas_negative.py b/tempest/api/compute/admin/test_quotas_negative.py
index 7cefe90..e86cb8c 100644
--- a/tempest/api/compute/admin/test_quotas_negative.py
+++ b/tempest/api/compute/admin/test_quotas_negative.py
@@ -13,6 +13,7 @@
 #    under the License.
 
 from tempest_lib import decorators
+from tempest_lib import exceptions as lib_exc
 
 from tempest.api.compute import base
 from tempest.common.utils import data_utils
@@ -59,7 +60,7 @@
 
         self.addCleanup(self.adm_client.update_quota_set, self.demo_tenant_id,
                         cores=default_vcpu_quota)
-        self.assertRaises((exceptions.Unauthorized, exceptions.OverLimit),
+        self.assertRaises((exceptions.Unauthorized, lib_exc.OverLimit),
                           self.create_test_server)
 
     @test.attr(type=['negative', 'gate'])
@@ -75,7 +76,7 @@
 
         self.addCleanup(self.adm_client.update_quota_set, self.demo_tenant_id,
                         ram=default_mem_quota)
-        self.assertRaises((exceptions.Unauthorized, exceptions.OverLimit),
+        self.assertRaises((exceptions.Unauthorized, lib_exc.OverLimit),
                           self.create_test_server)
 
     @test.attr(type=['negative', 'gate'])
@@ -90,7 +91,7 @@
                                          instances=instances_quota)
         self.addCleanup(self.adm_client.update_quota_set, self.demo_tenant_id,
                         instances=default_instances_quota)
-        self.assertRaises((exceptions.Unauthorized, exceptions.OverLimit),
+        self.assertRaises((exceptions.Unauthorized, lib_exc.OverLimit),
                           self.create_test_server)
 
     @decorators.skip_because(bug="1186354",
@@ -116,7 +117,7 @@
         # Check we cannot create anymore
         # A 403 Forbidden or 413 Overlimit (old behaviour) exception
         # will be raised when out of quota
-        self.assertRaises((exceptions.Unauthorized, exceptions.OverLimit),
+        self.assertRaises((exceptions.Unauthorized, lib_exc.OverLimit),
                           self.sg_client.create_security_group,
                           "sg-overlimit", "sg-desc")
 
@@ -155,6 +156,6 @@
         # Check we cannot create SG rule anymore
         # A 403 Forbidden or 413 Overlimit (old behaviour) exception
         # will be raised when out of quota
-        self.assertRaises((exceptions.OverLimit, exceptions.Unauthorized),
+        self.assertRaises((lib_exc.OverLimit, exceptions.Unauthorized),
                           self.sg_client.create_security_group_rule,
                           secgroup_id, ip_protocol, 1025, 1025)
diff --git a/tempest/api/compute/admin/test_servers_negative.py b/tempest/api/compute/admin/test_servers_negative.py
index 0dddc76..9800bb4 100644
--- a/tempest/api/compute/admin/test_servers_negative.py
+++ b/tempest/api/compute/admin/test_servers_negative.py
@@ -14,6 +14,7 @@
 
 import uuid
 
+from tempest_lib import exceptions as lib_exc
 import testtools
 
 from tempest.api.compute import base
@@ -71,7 +72,7 @@
                                                        ram, vcpus, disk,
                                                        flavor_id)
         self.addCleanup(self.flavors_client.delete_flavor, flavor_id)
-        self.assertRaises((exceptions.Unauthorized, exceptions.OverLimit),
+        self.assertRaises((exceptions.Unauthorized, lib_exc.OverLimit),
                           self.client.resize,
                           self.servers[0]['id'],
                           flavor_ref['id'])
@@ -92,7 +93,7 @@
                                                        ram, vcpus, disk,
                                                        flavor_id)
         self.addCleanup(self.flavors_client.delete_flavor, flavor_id)
-        self.assertRaises((exceptions.Unauthorized, exceptions.OverLimit),
+        self.assertRaises((exceptions.Unauthorized, lib_exc.OverLimit),
                           self.client.resize,
                           self.servers[0]['id'],
                           flavor_ref['id'])
diff --git a/tempest/api/compute/limits/test_absolute_limits_negative.py b/tempest/api/compute/limits/test_absolute_limits_negative.py
index d537d83..42adbfe 100644
--- a/tempest/api/compute/limits/test_absolute_limits_negative.py
+++ b/tempest/api/compute/limits/test_absolute_limits_negative.py
@@ -13,6 +13,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+from tempest_lib import exceptions as lib_exc
+
 from tempest.api.compute import base
 from tempest.common import tempest_fixtures as fixtures
 from tempest import exceptions
@@ -51,5 +53,5 @@
 
         # A 403 Forbidden or 413 Overlimit (old behaviour) exception
         # will be raised when out of quota
-        self.assertRaises((exceptions.Unauthorized, exceptions.OverLimit),
+        self.assertRaises((exceptions.Unauthorized, lib_exc.OverLimit),
                           self.create_test_server, meta=meta_data)
diff --git a/tempest/api/compute/servers/test_server_metadata_negative.py b/tempest/api/compute/servers/test_server_metadata_negative.py
index e193677..17a1e28 100644
--- a/tempest/api/compute/servers/test_server_metadata_negative.py
+++ b/tempest/api/compute/servers/test_server_metadata_negative.py
@@ -13,6 +13,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+from tempest_lib import exceptions as lib_exc
+
 from tempest.api.compute import base
 from tempest.common.utils import data_utils
 from tempest import exceptions
@@ -40,7 +42,7 @@
         for sz in [256, 257, 511, 1023]:
             key = "k" * sz
             meta = {key: 'data1'}
-            self.assertRaises((exceptions.BadRequest, exceptions.OverLimit),
+            self.assertRaises((exceptions.BadRequest, lib_exc.OverLimit),
                               self.create_test_server,
                               meta=meta)
 
@@ -130,14 +132,14 @@
         req_metadata = {}
         for num in range(1, quota_metadata + 2):
             req_metadata['key' + str(num)] = 'val' + str(num)
-        self.assertRaises((exceptions.OverLimit, exceptions.Unauthorized),
+        self.assertRaises((lib_exc.OverLimit, exceptions.Unauthorized),
                           self.client.set_server_metadata,
                           self.server_id, req_metadata)
 
         # A 403 Forbidden or 413 Overlimit (old behaviour) exception
         # will be raised while exceeding metadata items limit for
         # tenant.
-        self.assertRaises((exceptions.Unauthorized, exceptions.OverLimit),
+        self.assertRaises((exceptions.Unauthorized, lib_exc.OverLimit),
                           self.client.update_server_metadata,
                           self.server_id, req_metadata)
 
diff --git a/tempest/api/compute/servers/test_server_personality.py b/tempest/api/compute/servers/test_server_personality.py
index c6d48bc..55f90c8 100644
--- a/tempest/api/compute/servers/test_server_personality.py
+++ b/tempest/api/compute/servers/test_server_personality.py
@@ -14,6 +14,7 @@
 #    under the License.
 
 import base64
+from tempest_lib import exceptions as lib_exc
 
 from tempest.api.compute import base
 from tempest import exceptions
@@ -44,7 +45,7 @@
                                 'contents': base64.b64encode(file_contents)})
         # A 403 Forbidden or 413 Overlimit (old behaviour) exception
         # will be raised when out of quota
-        self.assertRaises((exceptions.Unauthorized, exceptions.OverLimit),
+        self.assertRaises((exceptions.Unauthorized, lib_exc.OverLimit),
                           self.create_test_server, personality=personality)
 
     @test.attr(type='gate')
diff --git a/tempest/api/compute/servers/test_servers_negative.py b/tempest/api/compute/servers/test_servers_negative.py
index b703cfe..18c7fc4 100644
--- a/tempest/api/compute/servers/test_servers_negative.py
+++ b/tempest/api/compute/servers/test_servers_negative.py
@@ -15,6 +15,7 @@
 
 import sys
 
+from tempest_lib import exceptions as lib_exc
 import testtools
 
 from tempest.api.compute import base
@@ -210,7 +211,7 @@
         # Pass really long metadata while creating a server
 
         metadata = {'a': 'b' * 260}
-        self.assertRaises((exceptions.BadRequest, exceptions.OverLimit),
+        self.assertRaises((exceptions.BadRequest, lib_exc.OverLimit),
                           self.create_test_server,
                           meta=metadata)
 
diff --git a/tempest/api/object_storage/test_account_quotas_negative.py b/tempest/api/object_storage/test_account_quotas_negative.py
index 5a0be54..36e7111 100644
--- a/tempest/api/object_storage/test_account_quotas_negative.py
+++ b/tempest/api/object_storage/test_account_quotas_negative.py
@@ -15,6 +15,7 @@
 # under the License.
 
 from tempest_lib import decorators
+from tempest_lib import exceptions as lib_exc
 
 from tempest.api.object_storage import base
 from tempest import clients
@@ -100,6 +101,6 @@
     def test_upload_large_object(self):
         object_name = data_utils.rand_name(name="TestObject")
         data = data_utils.arbitrary_string(30)
-        self.assertRaises(exceptions.OverLimit,
+        self.assertRaises(lib_exc.OverLimit,
                           self.object_client.create_object,
                           self.container_name, object_name, data)
diff --git a/tempest/api/object_storage/test_container_quotas.py b/tempest/api/object_storage/test_container_quotas.py
index 46944ed..12ec6d2 100644
--- a/tempest/api/object_storage/test_container_quotas.py
+++ b/tempest/api/object_storage/test_container_quotas.py
@@ -13,10 +13,11 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+from tempest_lib import exceptions as lib_exc
+
 from tempest.api.object_storage import base
 from tempest.common.utils import data_utils
 from tempest import config
-from tempest import exceptions
 from tempest import test
 
 CONF = config.CONF
@@ -75,7 +76,7 @@
 
         nbefore = self._get_bytes_used()
 
-        self.assertRaises(exceptions.OverLimit,
+        self.assertRaises(lib_exc.OverLimit,
                           self.object_client.create_object,
                           self.container_name, object_name, data)
 
@@ -93,7 +94,7 @@
         nbefore = self._get_object_count()
         self.assertEqual(nbefore, QUOTA_COUNT)
 
-        self.assertRaises(exceptions.OverLimit,
+        self.assertRaises(lib_exc.OverLimit,
                           self.object_client.create_object,
                           self.container_name, "OverQuotaObject", "")
 
diff --git a/tempest/api/volume/admin/test_volume_quotas_negative.py b/tempest/api/volume/admin/test_volume_quotas_negative.py
index 5cf6af0..d5eb05a 100644
--- a/tempest/api/volume/admin/test_volume_quotas_negative.py
+++ b/tempest/api/volume/admin/test_volume_quotas_negative.py
@@ -13,8 +13,9 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+from tempest_lib import exceptions as lib_exc
+
 from tempest.api.volume import base
-from tempest import exceptions
 from tempest import test
 
 
@@ -42,13 +43,13 @@
 
     @test.attr(type='negative')
     def test_quota_volumes(self):
-        self.assertRaises(exceptions.OverLimit,
+        self.assertRaises(lib_exc.OverLimit,
                           self.volumes_client.create_volume,
                           size=1)
 
     @test.attr(type='negative')
     def test_quota_volume_snapshots(self):
-        self.assertRaises(exceptions.OverLimit,
+        self.assertRaises(lib_exc.OverLimit,
                           self.snapshots_client.create_snapshot,
                           self.volume['id'])
 
@@ -65,7 +66,7 @@
         self.quotas_client.update_quota_set(
             self.demo_tenant_id,
             **new_quota_set)
-        self.assertRaises(exceptions.OverLimit,
+        self.assertRaises(lib_exc.OverLimit,
                           self.volumes_client.create_volume,
                           size=1)
 
@@ -73,7 +74,7 @@
         self.quotas_client.update_quota_set(
             self.demo_tenant_id,
             **self.shared_quota_set)
-        self.assertRaises(exceptions.OverLimit,
+        self.assertRaises(lib_exc.OverLimit,
                           self.snapshots_client.create_snapshot,
                           self.volume['id'])
 
diff --git a/tempest/common/service_client.py b/tempest/common/service_client.py
index 69e25e2..95101ec 100644
--- a/tempest/common/service_client.py
+++ b/tempest/common/service_client.py
@@ -67,8 +67,6 @@
             raise exceptions.BadRequest(ex)
         except lib_exceptions.Conflict as ex:
             raise exceptions.Conflict(ex)
-        except lib_exceptions.OverLimit as ex:
-            raise exceptions.OverLimit(ex)
         # TODO(oomichi): This is just a workaround for failing gate tests
         # when separating Forbidden from Unauthorized in tempest-lib.
         # We will need to remove this translation and replace negative tests
diff --git a/tempest/exceptions.py b/tempest/exceptions.py
index 7ddeeff..1baae8b 100644
--- a/tempest/exceptions.py
+++ b/tempest/exceptions.py
@@ -163,10 +163,6 @@
     message = "Bad request"
 
 
-class OverLimit(RestClientException):
-    message = "Quota exceeded"
-
-
 class Conflict(RestClientException):
     message = "An object with that identifier already exists"