diff --git a/src/cryptography/x509.py b/src/cryptography/x509.py
index 50fae71..cdddfb5 100644
--- a/src/cryptography/x509.py
+++ b/src/cryptography/x509.py
@@ -481,6 +481,15 @@
     def __repr__(self):
         return "<CertificatePolicies({0})>".format(self._policies)
 
+    def __eq__(self, other):
+        if not isinstance(other, CertificatePolicies):
+            return NotImplemented
+
+        return self._policies == other._policies
+
+    def __ne__(self, other):
+        return not self == other
+
 
 class PolicyInformation(object):
     def __init__(self, policy_identifier, policy_qualifiers):
@@ -506,6 +515,18 @@
             "y_qualifiers={0.policy_qualifiers})>".format(self)
         )
 
+    def __eq__(self, other):
+        if not isinstance(other, PolicyInformation):
+            return NotImplemented
+
+        return (
+            self.policy_identifier == other.policy_identifier and
+            self.policy_qualifiers == other.policy_qualifiers
+        )
+
+    def __ne__(self, other):
+        return not self == other
+
     policy_identifier = utils.read_only_property("_policy_identifier")
     policy_qualifiers = utils.read_only_property("_policy_qualifiers")
 
@@ -528,6 +549,18 @@
             "{0.explicit_text!r})>".format(self)
         )
 
+    def __eq__(self, other):
+        if not isinstance(other, UserNotice):
+            return NotImplemented
+
+        return (
+            self.notice_reference == other.notice_reference and
+            self.explicit_text == other.explicit_text
+        )
+
+    def __ne__(self, other):
+        return not self == other
+
     notice_reference = utils.read_only_property("_notice_reference")
     explicit_text = utils.read_only_property("_explicit_text")
 
@@ -550,6 +583,18 @@
             "{0.notice_numbers})>".format(self)
         )
 
+    def __eq__(self, other):
+        if not isinstance(other, NoticeReference):
+            return NotImplemented
+
+        return (
+            self.organization == other.organization and
+            self.notice_numbers == other.notice_numbers
+        )
+
+    def __ne__(self, other):
+        return not self == other
+
     organization = utils.read_only_property("_organization")
     notice_numbers = utils.read_only_property("_notice_numbers")
 
diff --git a/tests/test_x509_ext.py b/tests/test_x509_ext.py
index ae69f5f..f07792d 100644
--- a/tests/test_x509_ext.py
+++ b/tests/test_x509_ext.py
@@ -63,6 +63,19 @@
                 "4])>"
             )
 
+    def test_eq(self):
+        nr = x509.NoticeReference("org", [1, 2])
+        nr2 = x509.NoticeReference("org", [1, 2])
+        assert nr == nr2
+
+    def test_ne(self):
+        nr = x509.NoticeReference("org", [1, 2])
+        nr2 = x509.NoticeReference("org", [1])
+        nr3 = x509.NoticeReference(None, [1, 2])
+        assert nr != nr2
+        assert nr != nr3
+        assert nr != object()
+
 
 class TestUserNotice(object):
     def test_notice_reference_invalid(self):
@@ -87,6 +100,23 @@
                 "'org', notice_numbers=None)>, explicit_text=u'text')>"
             )
 
+    def test_eq(self):
+        nr = x509.NoticeReference("org", [1, 2])
+        nr2 = x509.NoticeReference("org", [1, 2])
+        un = x509.UserNotice(nr, "text")
+        un2 = x509.UserNotice(nr2, "text")
+        assert un == un2
+
+    def test_ne(self):
+        nr = x509.NoticeReference("org", [1, 2])
+        nr2 = x509.NoticeReference("org", [1])
+        un = x509.UserNotice(nr, "text")
+        un2 = x509.UserNotice(nr2, "text")
+        un3 = x509.UserNotice(nr, "text3")
+        assert un != un2
+        assert un != un3
+        assert un != object()
+
 
 class TestPolicyInformation(object):
     def test_invalid_policy_identifier(self):
@@ -124,6 +154,31 @@
                 "otice(notice_reference=None, explicit_text=u'hi')>])>"
             )
 
+    def test_eq(self):
+        pi = x509.PolicyInformation(
+            x509.ObjectIdentifier("1.2.3"),
+            [u"string", x509.UserNotice(None, u"hi")]
+        )
+        pi2 = x509.PolicyInformation(
+            x509.ObjectIdentifier("1.2.3"),
+            [u"string", x509.UserNotice(None, u"hi")]
+        )
+        assert pi == pi2
+
+    def test_ne(self):
+        pi = x509.PolicyInformation(
+            x509.ObjectIdentifier("1.2.3"), [u"string"]
+        )
+        pi2 = x509.PolicyInformation(
+            x509.ObjectIdentifier("1.2.3"), [u"string2"]
+        )
+        pi3 = x509.PolicyInformation(
+            x509.ObjectIdentifier("1.2.3.4"), [u"string"]
+        )
+        assert pi != pi2
+        assert pi != pi3
+        assert pi != object()
+
 
 class TestCertificatePolicies(object):
     def test_invalid_policies(self):
@@ -157,6 +212,29 @@
                 "ers=[u'string'])>])>"
             )
 
+    def test_eq(self):
+        pi = x509.PolicyInformation(
+            x509.ObjectIdentifier("1.2.3"), [u"string"]
+        )
+        cp = x509.CertificatePolicies([pi])
+        pi2 = x509.PolicyInformation(
+            x509.ObjectIdentifier("1.2.3"), [u"string"]
+        )
+        cp2 = x509.CertificatePolicies([pi2])
+        assert cp == cp2
+
+    def test_ne(self):
+        pi = x509.PolicyInformation(
+            x509.ObjectIdentifier("1.2.3"), [u"string"]
+        )
+        cp = x509.CertificatePolicies([pi])
+        pi2 = x509.PolicyInformation(
+            x509.ObjectIdentifier("1.2.3"), [u"string2"]
+        )
+        cp2 = x509.CertificatePolicies([pi2])
+        assert cp != cp2
+        assert cp != object()
+
 
 class TestKeyUsage(object):
     def test_key_agreement_false_encipher_decipher_true(self):