diff --git a/heat/api/openstack/v1/stacks.py b/heat/api/openstack/v1/stacks.py
index 6d57dc3c12..781b379845 100644
--- a/heat/api/openstack/v1/stacks.py
+++ b/heat/api/openstack/v1/stacks.py
@@ -560,7 +560,8 @@ class StackController(object):
 
         data = InstantiationData(body)
 
-        whitelist = {'show_nested': util.PARAM_TYPE_SINGLE}
+        whitelist = {'show_nested': util.PARAM_TYPE_SINGLE,
+                     'ignore_errors': util.PARAM_TYPE_SINGLE}
         params = util.get_allowed_params(req.params, whitelist)
 
         show_nested = False
@@ -569,13 +570,19 @@ class StackController(object):
             params[p_name] = self._extract_bool_param(p_name, params[p_name])
             show_nested = params[p_name]
 
+        if rpc_api.PARAM_IGNORE_ERRORS in params:
+            ignorable_errors = params[rpc_api.PARAM_IGNORE_ERRORS].split(',')
+        else:
+            ignorable_errors = None
+
         result = self.rpc_client.validate_template(
             req.context,
             data.template(),
             data.environment(),
             files=data.files(),
             environment_files=data.environment_files(),
-            show_nested=show_nested)
+            show_nested=show_nested,
+            ignorable_errors=ignorable_errors)
 
         if 'Error' in result:
             raise exc.HTTPBadRequest(result['Error'])
diff --git a/heat/rpc/api.py b/heat/rpc/api.py
index 9e8ebd0188..fbb6af27ee 100644
--- a/heat/rpc/api.py
+++ b/heat/rpc/api.py
@@ -20,14 +20,14 @@ PARAM_KEYS = (
     PARAM_CLEAR_PARAMETERS, PARAM_GLOBAL_TENANT, PARAM_LIMIT,
     PARAM_NESTED_DEPTH, PARAM_TAGS, PARAM_SHOW_HIDDEN, PARAM_TAGS_ANY,
     PARAM_NOT_TAGS, PARAM_NOT_TAGS_ANY, TEMPLATE_TYPE, PARAM_WITH_DETAIL,
-    RESOLVE_OUTPUTS
+    RESOLVE_OUTPUTS, PARAM_IGNORE_ERRORS
 ) = (
     'timeout_mins', 'disable_rollback', 'adopt_stack_data',
     'show_deleted', 'show_nested', 'existing',
     'clear_parameters', 'global_tenant', 'limit',
     'nested_depth', 'tags', 'show_hidden', 'tags_any',
     'not_tags', 'not_tags_any', 'template_type', 'with_detail',
-    'resolve_outputs',
+    'resolve_outputs', 'ignore_errors'
 )
 
 STACK_KEYS = (
diff --git a/heat/rpc/client.py b/heat/rpc/client.py
index 2efdef3c07..3b37f9c881 100644
--- a/heat/rpc/client.py
+++ b/heat/rpc/client.py
@@ -42,6 +42,7 @@ class EngineClient(object):
         1.21 - Add deployment_id to create_software_deployment
         1.22 - Add support for stack export
         1.23 - Add environment_files to create/update/preview/validate
+        1.24 - Adds ignorable_errors to validate_template
     """
 
     BASE_RPC_API_VERSION = '1.0'
@@ -318,7 +319,8 @@ class EngineClient(object):
                          version='1.23')
 
     def validate_template(self, ctxt, template, params=None, files=None,
-                          environment_files=None, show_nested=False):
+                          environment_files=None, show_nested=False,
+                          ignorable_errors=None):
         """Uses the stack parser to check the validity of a template.
 
         :param ctxt: RPC context.
@@ -328,15 +330,18 @@ class EngineClient(object):
         :param environment_files: ordered list of environment file names
                included in the files dict
         :param show_nested: if True nested templates will be validated
+        :param ignorable_errors: List of error_code to be ignored as part of
+        validation
         """
-        return self.call(ctxt,
-                         self.make_msg('validate_template',
-                                       template=template,
-                                       params=params,
-                                       files=files,
-                                       environment_files=environment_files,
-                                       show_nested=show_nested),
-                         version='1.23')
+        return self.call(ctxt, self.make_msg(
+            'validate_template',
+            template=template,
+            params=params,
+            files=files,
+            show_nested=show_nested,
+            environment_files=environment_files,
+            ignorable_errors=ignorable_errors),
+            version='1.24')
 
     def authenticated_to_backend(self, ctxt):
         """Validate the credentials in the RPC context.
diff --git a/heat/tests/api/cfn/test_api_cfn_v1.py b/heat/tests/api/cfn/test_api_cfn_v1.py
index 521d6b0469..d341c00c6b 100644
--- a/heat/tests/api/cfn/test_api_cfn_v1.py
+++ b/heat/tests/api/cfn/test_api_cfn_v1.py
@@ -1100,8 +1100,9 @@ class CfnStackControllerTest(common.HeatTestCase):
             dummy_req.context,
             ('validate_template', {'template': json_template, 'params': None,
                                    'files': None, 'environment_files': None,
-                                   'show_nested': False}),
-            version='1.23'
+                                   'show_nested': False,
+                                   'ignorable_errors': None}),
+            version='1.24'
         ).AndReturn(response)
         self.m.ReplayAll()
 
diff --git a/heat/tests/api/openstack_v1/test_stacks.py b/heat/tests/api/openstack_v1/test_stacks.py
index 313354bb1b..b68c040cb3 100644
--- a/heat/tests/api/openstack_v1/test_stacks.py
+++ b/heat/tests/api/openstack_v1/test_stacks.py
@@ -2248,8 +2248,9 @@ class StackControllerTest(tools.ControllerTest, common.HeatTestCase):
                          'resource_registry': {}},
               'files': {},
               'environment_files': None,
-              'show_nested': False}),
-            version='1.23'
+              'show_nested': False,
+              'ignorable_errors': None}),
+            version='1.24'
         ).AndReturn(engine_response)
         self.m.ReplayAll()
 
@@ -2278,8 +2279,9 @@ class StackControllerTest(tools.ControllerTest, common.HeatTestCase):
                          'resource_registry': {}},
               'files': {},
               'environment_files': None,
-              'show_nested': False}),
-            version='1.23'
+              'show_nested': False,
+              'ignorable_errors': None}),
+            version='1.24'
         ).AndReturn({'Error': 'fubar'})
         self.m.ReplayAll()
 
diff --git a/heat/tests/test_rpc_client.py b/heat/tests/test_rpc_client.py
index cf1f6e1dfe..f3bd7da607 100644
--- a/heat/tests/test_rpc_client.py
+++ b/heat/tests/test_rpc_client.py
@@ -204,7 +204,9 @@ class EngineRpcAPITestCase(common.HeatTestCase):
                               params={u'Egg': u'spam'},
                               files=None,
                               environment_files=['foo.yaml'],
-                              show_nested=False)
+                              ignorable_errors=None,
+                              show_nested=False,
+                              version='1.24')
 
     def test_list_resource_types(self):
         self._test_engine_api('list_resource_types',