diff --git a/HACKING.rst b/HACKING.rst
index dd79c55513f..256467d2616 100644
--- a/HACKING.rst
+++ b/HACKING.rst
@@ -15,7 +15,6 @@ Cinder Specific Commandments
 - [N328] LOG.info messages require translations `_LI()`.
 - [N329] LOG.exception and LOG.error messages require translations `_LE()`.
 - [N330] LOG.warning messages require translations `_LW()`.
-- [N333] Ensure that oslo namespaces are used for namespaced libraries.
 - [N336] Must use a dict comprehension instead of a dict constructor with a sequence of key-value pairs.
 - [C301] timeutils.utcnow() from oslo_utils should be used instead of datetime.now().
 - [C302] six.text_type should be used instead of unicode.
diff --git a/cinder/hacking/checks.py b/cinder/hacking/checks.py
index f794f83976b..73033af7ea9 100644
--- a/cinder/hacking/checks.py
+++ b/cinder/hacking/checks.py
@@ -383,14 +383,6 @@ def validate_log_translations(logical_line, filename):
         yield (0, msg)
 
 
-def check_oslo_namespace_imports(logical_line):
-    if re.match(oslo_namespace_imports, logical_line):
-        msg = ("N333: '%s' must be used instead of '%s'.") % (
-            logical_line.replace('oslo.', 'oslo_'),
-            logical_line)
-        yield(0, msg)
-
-
 def check_datetime_now(logical_line, noqa):
     if noqa:
         return
@@ -500,7 +492,6 @@ def factory(register):
     register(CheckForStrUnicodeExc)
     register(CheckLoggingFormatArgs)
     register(CheckOptRegistrationArgs)
-    register(check_oslo_namespace_imports)
     register(check_datetime_now)
     register(check_timeutils_strtime)
     register(check_timeutils_isotime)
diff --git a/cinder/tests/unit/test_hacking.py b/cinder/tests/unit/test_hacking.py
index a118ea5b62d..ddd75fa4561 100644
--- a/cinder/tests/unit/test_hacking.py
+++ b/cinder/tests/unit/test_hacking.py
@@ -294,32 +294,6 @@ class HackingTestCase(test.TestCase):
         self.assertEqual(1, len(list(checks.no_mutable_default_args(
             "def foo (bar={}):"))))
 
-    def test_oslo_namespace_imports_check(self):
-        self.assertEqual(1, len(list(checks.check_oslo_namespace_imports(
-            "from oslo.concurrency import foo"))))
-        self.assertEqual(0, len(list(checks.check_oslo_namespace_imports(
-            "from oslo_concurrency import bar"))))
-        self.assertEqual(1, len(list(checks.check_oslo_namespace_imports(
-            "from oslo.db import foo"))))
-        self.assertEqual(0, len(list(checks.check_oslo_namespace_imports(
-            "from oslo_db import bar"))))
-        self.assertEqual(1, len(list(checks.check_oslo_namespace_imports(
-            "from oslo.config import foo"))))
-        self.assertEqual(0, len(list(checks.check_oslo_namespace_imports(
-            "from oslo_config import bar"))))
-        self.assertEqual(1, len(list(checks.check_oslo_namespace_imports(
-            "from oslo.utils import foo"))))
-        self.assertEqual(0, len(list(checks.check_oslo_namespace_imports(
-            "from oslo_utils import bar"))))
-        self.assertEqual(1, len(list(checks.check_oslo_namespace_imports(
-            "from oslo.serialization import foo"))))
-        self.assertEqual(0, len(list(checks.check_oslo_namespace_imports(
-            "from oslo_serialization import bar"))))
-        self.assertEqual(1, len(list(checks.check_oslo_namespace_imports(
-            "from oslo.log import foo"))))
-        self.assertEqual(0, len(list(checks.check_oslo_namespace_imports(
-            "from oslo_log import bar"))))
-
     def test_check_datetime_now(self):
         self.assertEqual(1, len(list(checks.check_datetime_now(
             "datetime.now", False))))