diff --git a/tobiko/tests/scenario/neutron/test_security_groups.py b/tobiko/tests/scenario/neutron/test_security_groups.py
index 9db96bc36..a46ebaf22 100644
--- a/tobiko/tests/scenario/neutron/test_security_groups.py
+++ b/tobiko/tests/scenario/neutron/test_security_groups.py
@@ -153,3 +153,34 @@ class StatelessSecurityGroupTest(BaseSecurityGroupTest):
         )
         self._check_sg_rule_in_ovn_nb_db(new_rule['id'],
                                          neutron.STATEFUL_OVN_ACTION)
+
+    def test_new_security_group_is_stateful(self):
+        """Test that newly created security group is stateful by default.
+
+        This test checks if newly created SG is stateful by default
+        and if OVN's ACLs corresponding to the SG's rules have correct
+        action which is "allow-related".
+
+        Steps:
+        1. Create SG for the project,
+        2. Check if ACLs corresponding to the rules from that SG have
+           "action-related" action,
+        3. Add new SG rule in the SG,
+        4. Check action of the ACL corresponding to the newly created SG rule.
+        """
+        sg = neutron.create_security_group(
+            name="test_new_security_group_is_statefull_SG",
+        )
+        self.assertTrue(sg['stateful'])
+        self._check_sg_rules_in_ovn_nb_db(sg, neutron.STATEFUL_OVN_ACTION)
+        new_rule = neutron.create_security_group_rule(
+            sg['id'],
+            port_range_min=1111,
+            port_range_max=1111,
+            ethertype="IPv4",
+            protocol="tcp",
+            description="test_new_security_group_is_statefull_SG rule",
+            direction="ingress"
+        )
+        self._check_sg_rule_in_ovn_nb_db(new_rule['id'],
+                                         neutron.STATEFUL_OVN_ACTION)