diff --git a/tests/calendars/test_trading_calendar.py b/tests/calendars/test_trading_calendar.py
index 2fdbd2b2..0357a645 100644
--- a/tests/calendars/test_trading_calendar.py
+++ b/tests/calendars/test_trading_calendar.py
@@ -27,6 +27,7 @@ from pandas import read_csv
 from pandas.tslib import Timedelta
 from pandas.util.testing import assert_index_equal
 from pytz import timezone
+from toolz import concat
 
 from zipline.errors import (
     CalendarNameCollision,
@@ -38,7 +39,8 @@ from zipline.utils.calendars import(
     deregister_calendar,
     get_calendar,
 )
-from zipline.utils.calendars.calendar_utils import register_calendar_type
+from zipline.utils.calendars.calendar_utils import register_calendar_type, \
+    _default_calendar_factories
 from zipline.utils.calendars.trading_calendar import days_at_time, \
     TradingCalendar
 
@@ -119,6 +121,13 @@ class CalendarRegistrationTestCase(TestCase):
         self.assertNotEqual(first_dummy, second_dummy)
 
 
+class DefaultsTestCase(TestCase):
+    def test_default_calendars(self):
+        for name in concat(_default_calendar_factories):
+            self.assertIsNotNone(get_calendar(name),
+                                 "get_calendar(%r) returned None" % name)
+
+
 class DaysAtTimeTestCase(TestCase):
     @parameterized.expand([
         # NYSE standard day
diff --git a/zipline/utils/calendars/exchange_calendar_bmf.py b/zipline/utils/calendars/exchange_calendar_bmf.py
index dccbe948..74585453 100644
--- a/zipline/utils/calendars/exchange_calendar_bmf.py
+++ b/zipline/utils/calendars/exchange_calendar_bmf.py
@@ -1,6 +1,20 @@
+#
+# Copyright 2016 Quantopian, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 from datetime import time
 from pandas.tseries.holiday import(
-    AbstractHolidayCalendar,
     Holiday,
     Easter,
     Day,
@@ -132,43 +146,6 @@ AnoNovoSabado = Holiday(
 )
 
 
-class BMFHolidayCalendar(AbstractHolidayCalendar):
-    """
-    Non-trading days for the BM&F.
-
-    See NYSEExchangeCalendar for full description.
-    """
-    rules = [
-        ConfUniversal,
-        AniversarioSaoPaulo,
-        CarnavalSegunda,
-        CarnavalTerca,
-        SextaPaixao,
-        CorpusChristi,
-        Tiradentes,
-        DiaTrabalho,
-        Constitucionalista,
-        Independencia,
-        Aparecida,
-        Finados,
-        ProclamacaoRepublica,
-        ConscienciaNegra,
-        VesperaNatal,
-        Natal,
-        AnoNovo,
-        AnoNovoSabado,
-    ]
-
-
-class BMFLateOpenCalendar(AbstractHolidayCalendar):
-    """
-    Regular early close calendar for NYSE
-    """
-    rules = [
-        QuartaCinzas,
-    ]
-
-
 class BMFExchangeCalendar(TradingCalendar):
     """
     Exchange calendar for BM&F BOVESPA
@@ -202,7 +179,7 @@ class BMFExchangeCalendar(TradingCalendar):
 
     @property
     def tz(self):
-        return timezone("America/Sao_Paolo")
+        return timezone("America/Sao_Paulo")
 
     @property
     def open_time(self):
diff --git a/zipline/utils/calendars/exchange_calendar_lse.py b/zipline/utils/calendars/exchange_calendar_lse.py
index d68be030..cac6dc57 100644
--- a/zipline/utils/calendars/exchange_calendar_lse.py
+++ b/zipline/utils/calendars/exchange_calendar_lse.py
@@ -1,3 +1,18 @@
+#
+# Copyright 2016 Quantopian, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 from datetime import time
 from pandas.tseries.holiday import(
     Holiday,
@@ -27,6 +42,7 @@ MayBank = Holiday(
     "Early May Bank Holiday",
     month=5,
     offset=DateOffset(weekday=MO(1)),
+    day=1,
 )
 # Spring bank holiday
 SpringBank = Holiday(