diff --git a/sigi/admin/filterspecs.py b/sigi/admin/filterspecs.py
index d926dab..74a67d7 100644
--- a/sigi/admin/filterspecs.py
+++ b/sigi/admin/filterspecs.py
@@ -45,7 +45,7 @@ class MunicipioUFFilterSpec(ChoicesFilterSpec):
 
       my_municipio_field.uf_filter = True
 
-    On Django 1.2 you will can specify a lookup on admin filters. Example:
+    On Django 1.3 you will can specify a lookup on admin filters. Example:
 
       list_filter = ('municipio__uf',)
 
@@ -74,6 +74,42 @@ class MunicipioUFFilterSpec(ChoicesFilterSpec):
 FilterSpec.filter_specs.insert(0, (lambda f: getattr(f, 'uf_filter', False),
                                    MunicipioUFFilterSpec))
 
+class ConvenioUFFilterSpec(ChoicesFilterSpec):
+    """
+    Usage:
+
+      municipio.uf_filter = True
+
+    On Django 1.3 you will can specify a lookup on admin filters. Example:
+
+      list_filter = ('municipio__uf',)
+
+    """
+
+    def __init__(self, f, request, params, model, model_admin):
+        super(ConvenioUFFilterSpec, self).__init__(f, request, params, model,
+                                                    model_admin)
+        self.lookup_kwarg = '%s__municipio__uf__codigo_ibge__exact' % f.name
+        self.lookup_val = request.GET.get(self.lookup_kwarg, None)
+        self.lookup_choices = UnidadeFederativa.objects.all().order_by('nome')
+
+    def choices(self, cl):
+        yield {'selected': self.lookup_val is None,
+                'query_string': cl.get_query_string({}, [self.lookup_kwarg]),
+                'display': _('All')}
+        for val in self.lookup_choices:
+            yield {'selected': smart_unicode(val.codigo_ibge) == self.lookup_val,
+                    'query_string': cl.get_query_string({self.lookup_kwarg: val.codigo_ibge}),
+                    'display': val.nome}
+    def title(self):
+        return _('UF') % \
+            {'field_name': self.field.verbose_name}
+
+# registering the filter
+FilterSpec.filter_specs.insert(0, (lambda f: getattr(f, 'uf_filter', False),
+                                   ConvenioUFFilterSpec))
+
+
 class RangeValuesFilterSpec(FilterSpec):
     """
     Author: Willie Gollino (wgollino@yahoo.com)
diff --git a/sigi/apps/convenios/admin.py b/sigi/apps/convenios/admin.py
index 120ce98..75af0e5 100644
--- a/sigi/apps/convenios/admin.py
+++ b/sigi/apps/convenios/admin.py
@@ -39,7 +39,7 @@ class ConvenioAdmin(admin.ModelAdmin):
     inlines = (AnexosInline, EquipamentoPrevistoInline)
     list_display = ('id', 'casa_legislativa',
                     'num_processo_sf', 'data_adesao', 'projeto')
-    list_filter  = ('projeto',)
+    list_filter  = ('projeto','casa_legislativa')
     date_hierarchy = 'data_adesao'                    
     ordering = ('-id',)
     raw_id_fields = ('casa_legislativa',)
diff --git a/sigi/apps/convenios/models.py b/sigi/apps/convenios/models.py
index 2512dff..60d64ef 100644
--- a/sigi/apps/convenios/models.py
+++ b/sigi/apps/convenios/models.py
@@ -15,6 +15,7 @@ class Convenio(models.Model):
         'casas.CasaLegislativa',
         verbose_name='Casa Legislativa'
     )
+    casa_legislativa.uf_filter = True
     num_processo_sf = models.CharField(
         'número do processo SF',
         max_length=11,