diff --git a/CHANGES.rst b/CHANGES.rst
index 9dcf62c..36d88a8 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -28,6 +28,10 @@ Changelog
   [hvelarde]
 
 - Corrige tratamento de fuso horário na view padrão do tipo de conteúdo ``AgendaDiaria``;
+- Remove o campo ``subjects`` dos tipos de conteúdo ``Agenda``, ``AgendaDiaria`` e ``Compromisso`` por ser considerado `desnecessário <https://listas.interlegis.gov.br/pipermail/plonegov-br/2018-June/004767.html>`_.
+  [hvelarde]
+
+- Corrije tratamento de fuso horário na view padrão do tipo de conteúdo ``AgendaDiaria``;
   isso evita mudanças na hora dos compromissos em browsers com um fuso horário diferente do vigente no Brasil.
   [rodfersou, hvelarde]
 
diff --git a/src/brasil/gov/agenda/content/agenda.py b/src/brasil/gov/agenda/content/agenda.py
index e075689..8d51837 100644
--- a/src/brasil/gov/agenda/content/agenda.py
+++ b/src/brasil/gov/agenda/content/agenda.py
@@ -1,19 +1,9 @@
 # -*- coding: utf-8 -*-
 from brasil.gov.agenda.interfaces import IAgenda
 from plone.dexterity.content import Container
-from plone.dexterity.utils import safe_utf8
-from plone.indexer.decorator import indexer
 from zope.interface import implementer
 
 
 @implementer(IAgenda)
 class Agenda(Container):
     """Agenda de um membro do Governo Brasileiro"""
-
-
-@indexer(IAgenda)
-def tags(obj):
-    """Indexa tags de Agenda."""
-    if obj.subjects is None:
-        return ()
-    return tuple(safe_utf8(s) for s in obj.subjects)
diff --git a/src/brasil/gov/agenda/content/agendadiaria.py b/src/brasil/gov/agenda/content/agendadiaria.py
index ff49713..367932c 100644
--- a/src/brasil/gov/agenda/content/agendadiaria.py
+++ b/src/brasil/gov/agenda/content/agendadiaria.py
@@ -8,7 +8,6 @@
 from DateTime import DateTime
 from plone import api
 from plone.dexterity.content import Container
-from plone.dexterity.utils import safe_utf8
 from plone.indexer.decorator import indexer
 from plone.supermodel.interfaces import IDefaultFactory
 from Products.CMFPlone.utils import safe_hasattr
@@ -93,14 +92,6 @@ def default_location(context):
     return getattr(context, 'location', u'')
 
 
-@provider(IContextAwareDefaultFactory)
-def default_subjects(context):
-    # XXX: deal with testing issues https://stackoverflow.com/q/35799092/644075
-    if not safe_hasattr(context, 'aq_parent'):
-        return ()
-    return getattr(context, 'subjects', ())
-
-
 @provider(IDefaultFactory)
 def default_date():
     """ Retorna um dia no futuro """
@@ -117,14 +108,6 @@ def validate(self, value):
             raise Invalid(_(u'Ja existe uma agenda para esta data'))
 
 
-@indexer(IAgendaDiaria)
-def tags(obj):
-    """Indexa tags de AgendaDiaria."""
-    if obj.subjects is None:
-        return ()
-    return tuple(safe_utf8(s) for s in obj.subjects)
-
-
 @indexer(IAgendaDiaria)
 def SearchableText_AgendaDiaria(obj):
     """ Indexa os dados dos compromissos dentro desta AgendaDiaria
diff --git a/src/brasil/gov/agenda/content/compromisso.py b/src/brasil/gov/agenda/content/compromisso.py
index faf5645..461c610 100644
--- a/src/brasil/gov/agenda/content/compromisso.py
+++ b/src/brasil/gov/agenda/content/compromisso.py
@@ -3,7 +3,6 @@
 from brasil.gov.agenda.interfaces import ICompromisso
 from DateTime import DateTime
 from plone.dexterity.content import Container
-from plone.dexterity.utils import safe_utf8
 from plone.indexer.decorator import indexer
 from Products.CMFPlone.utils import safe_hasattr
 from zope.interface import implementer
@@ -39,14 +38,6 @@ def default_location(context):
     return getattr(context, 'location', u'')
 
 
-@provider(IContextAwareDefaultFactory)
-def default_subjects(context):
-    # XXX: deal with testing issues https://stackoverflow.com/q/35799092/644075
-    if not safe_hasattr(context, 'aq_parent'):
-        return ()
-    return getattr(context, 'subjects', ())
-
-
 @provider(IContextAwareDefaultFactory)
 def default_start_date(context):
     if IAgendaDiaria.providedBy(context):
@@ -85,14 +76,6 @@ def end_date(obj):
     return DateTime(ICompromisso(obj).end_date)
 
 
-@indexer(ICompromisso)
-def tags(obj):
-    """Indexa tags de Compromisso."""
-    if obj.subjects is None:
-        return ()
-    return tuple(safe_utf8(s) for s in obj.subjects)
-
-
 @indexer(ICompromisso)
 def exclude_from_nav(obj):
     # Compromissos sempre serao ocultos da navegacao
diff --git a/src/brasil/gov/agenda/content/configure.zcml b/src/brasil/gov/agenda/content/configure.zcml
index 10dada0..e83a121 100644
--- a/src/brasil/gov/agenda/content/configure.zcml
+++ b/src/brasil/gov/agenda/content/configure.zcml
@@ -1,20 +1,13 @@
-<configure
-    xmlns="http://namespaces.zope.org/zope"
-    i18n_domain="brasil.gov.agenda">
-
-  <adapter name="Subject" factory=".agenda.tags" />
+<configure xmlns="http://namespaces.zope.org/zope">
 
   <adapter name="start" factory=".compromisso.start_date" />
   <adapter name="end" factory=".compromisso.end_date" />
   <adapter name="exclude_from_nav" factory=".compromisso.exclude_from_nav" />
-  <adapter name="Subject" factory=".compromisso.tags" />
-
 
   <adapter name="start" factory=".agendadiaria.start_date" />
   <adapter name="end" factory=".agendadiaria.end_date" />
   <adapter name="EffectiveDate" factory=".agendadiaria.EffectiveDate" />
   <adapter name="exclude_from_nav" factory=".agendadiaria.exclude_from_nav" />
   <adapter name="SearchableText" factory=".agendadiaria.SearchableText_AgendaDiaria" />
-  <adapter name="Subject" factory=".agendadiaria.tags" />
 
 </configure>
diff --git a/src/brasil/gov/agenda/content/schema/Agenda.xml b/src/brasil/gov/agenda/content/schema/Agenda.xml
index 45a52f6..ea8d8a0 100644
--- a/src/brasil/gov/agenda/content/schema/Agenda.xml
+++ b/src/brasil/gov/agenda/content/schema/Agenda.xml
@@ -23,15 +23,5 @@
       <required>False</required>
       <title i18n:translate="label_event_location">Event Location</title>
     </field>
-    <field name="subjects" type="zope.schema.Tuple" indexer:searchable="true">
-      <description i18n:translate="">Tags são utilizadas para organização de conteúdo</description>
-      <default_value>()</default_value>
-      <missing_value>()</missing_value>
-      <required>False</required>
-      <title>Tags</title>
-      <value_type type="zope.schema.TextLine">
-        <title>Tag</title>
-      </value_type>
-    </field>
   </schema>
 </model>
diff --git a/src/brasil/gov/agenda/content/schema/AgendaDiaria.xml b/src/brasil/gov/agenda/content/schema/AgendaDiaria.xml
index bd5108b..200f3f1 100644
--- a/src/brasil/gov/agenda/content/schema/AgendaDiaria.xml
+++ b/src/brasil/gov/agenda/content/schema/AgendaDiaria.xml
@@ -27,16 +27,5 @@
         <required>False</required>
         <title i18n:translate="">Atualizacao</title>
     </field>
-    <field name="subjects" type="zope.schema.Tuple" indexer:searchable="true">
-      <description i18n:translate="">Tags são utilizadas para organização de conteúdo</description>
-      <defaultFactory>brasil.gov.agenda.content.agendadiaria.default_subjects</defaultFactory>
-      <default_value>()</default_value>
-      <missing_value>()</missing_value>
-      <required>False</required>
-      <title>Tags</title>
-      <value_type type="zope.schema.TextLine">
-        <title>Tag</title>
-      </value_type>
-    </field>
   </schema>
 </model>
diff --git a/src/brasil/gov/agenda/content/schema/Compromisso.xml b/src/brasil/gov/agenda/content/schema/Compromisso.xml
index d88ed24..9a1b24f 100644
--- a/src/brasil/gov/agenda/content/schema/Compromisso.xml
+++ b/src/brasil/gov/agenda/content/schema/Compromisso.xml
@@ -40,16 +40,5 @@
         <defaultFactory>brasil.gov.agenda.content.compromisso.default_location</defaultFactory>
         <title i18n:translate="label_event_location">Event Location</title>
       </field>
-    <field name="subjects" type="zope.schema.Tuple" indexer:searchable="true">
-      <description i18n:translate="">Tags são utilizadas para organização de conteúdo</description>
-      <default_value>()</default_value>
-      <missing_value>()</missing_value>
-      <required>False</required>
-      <defaultFactory>brasil.gov.agenda.content.compromisso.default_subjects</defaultFactory>
-      <title>Tags</title>
-      <value_type type="zope.schema.TextLine">
-        <title>Tag</title>
-      </value_type>
-    </field>
   </schema>
 </model>
diff --git a/src/brasil/gov/agenda/tests/test_agenda.py b/src/brasil/gov/agenda/tests/test_agenda.py
index 4188eb3..dbd6563 100644
--- a/src/brasil/gov/agenda/tests/test_agenda.py
+++ b/src/brasil/gov/agenda/tests/test_agenda.py
@@ -61,16 +61,6 @@ def test_exclude_from_nav_default(self):
         behavior = IExcludeFromNavigation(self.agenda)
         self.assertFalse(behavior.exclude_from_nav)
 
-    def test_subjects_catalog(self):
-        agenda = self.agenda
-        agenda.subjects = (u'Brasil', u'México')
-        agenda.reindexObject(idxs=['Subject'])
-        ct = self.portal.portal_catalog
-        results = ct.searchResults(portal_type='Agenda')
-        b = results[0]
-        self.assertIn('Brasil', b.Subject)
-        self.assertIn('México', b.Subject)
-
     def test_agendadiaria_ordering(self):
         # Create two AgendaDiaria objects
         self.agenda.invokeFactory('AgendaDiaria', '2013-10-17')
diff --git a/src/brasil/gov/agenda/tests/test_agendadiaria.py b/src/brasil/gov/agenda/tests/test_agendadiaria.py
index 78f128a..9dbe474 100644
--- a/src/brasil/gov/agenda/tests/test_agendadiaria.py
+++ b/src/brasil/gov/agenda/tests/test_agendadiaria.py
@@ -75,24 +75,6 @@ def test_exclude_from_nav(self):
     def test_exclude_from_nav_behavior(self):
         self.assertFalse(IExcludeFromNavigation.providedBy(self.agendadiaria))
 
-    def test_subjects_catalog(self):
-        agendadiaria = self.agendadiaria
-        agendadiaria.subjects = (u'Brasil', u'México')
-        agendadiaria.reindexObject(idxs=['Subject'])
-        ct = self.portal.portal_catalog
-        results = ct.searchResults(portal_type='AgendaDiaria')
-        b = results[0]
-        self.assertIn('Brasil', b.Subject)
-        self.assertIn('México', b.Subject)
-
-    def test_default_subjects(self):
-        from brasil.gov.agenda.content.agendadiaria import default_subjects
-        agenda = self.agenda
-        agenda.subjects = (u'Brasil', u'México')
-        # default_factory é executado no container
-        self.assertIn(u'Brasil', default_subjects(agenda))
-        self.assertIn(u'México', default_subjects(agenda))
-
     def test_datevalidator(self):
         from brasil.gov.agenda.content.agendadiaria import DateValidator
         from zope.interface.exceptions import Invalid
diff --git a/src/brasil/gov/agenda/tests/test_compromisso.py b/src/brasil/gov/agenda/tests/test_compromisso.py
index c5eb72f..53e59b9 100644
--- a/src/brasil/gov/agenda/tests/test_compromisso.py
+++ b/src/brasil/gov/agenda/tests/test_compromisso.py
@@ -75,24 +75,6 @@ def test_exclude_from_nav(self):
     def test_exclude_from_nav_behavior(self):
         self.assertFalse(IExcludeFromNavigation.providedBy(self.compromisso))
 
-    def test_subjects_catalog(self):
-        compromisso = self.compromisso
-        compromisso.subjects = (u'Brasil', u'México')
-        compromisso.reindexObject(idxs=['Subject'])
-        ct = self.portal.portal_catalog
-        results = ct.searchResults(portal_type='Compromisso')
-        b = results[0]
-        self.assertIn('Brasil', b.Subject)
-        self.assertIn('México', b.Subject)
-
-    def test_default_subjects(self):
-        from brasil.gov.agenda.content.compromisso import default_subjects
-        agendadiaria = self.agendadiaria
-        agendadiaria.subjects = (u'Brasil', u'México')
-        # default_factory é executado no container
-        self.assertIn(u'Brasil', default_subjects(agendadiaria))
-        self.assertIn(u'México', default_subjects(agendadiaria))
-
     def test_default_start_date(self):
         from brasil.gov.agenda.content.compromisso import default_start_date
         date_fmt = '%Y-%m-%d %H:%M'