diff --git a/comissoes/models.py b/comissoes/models.py
index 41fc6a38b..448fae127 100644
--- a/comissoes/models.py
+++ b/comissoes/models.py
@@ -30,7 +30,7 @@ class Comissao(models.Model):
     local_reuniao = models.CharField(max_length=100, blank=True, null=True)
     txt_finalidade = models.TextField(blank=True, null=True)
     endereco_email = models.CharField(max_length=100, blank=True, null=True)
-    ind_unid_deliberativa = models.IntegerField()
+    unid_deliberativa = models.BooleanField()
 
 
 class PeriodoCompComissao(models.Model):
@@ -40,7 +40,7 @@ class PeriodoCompComissao(models.Model):
 
 class CargoComissao(models.Model):
     nome = models.CharField(max_length=50)
-    ind_unico = models.IntegerField()
+    unico = models.BooleanField()
 
 
 class ComposicaoComissao(models.Model):
@@ -48,7 +48,7 @@ class ComposicaoComissao(models.Model):
     comissao = models.ForeignKey(Comissao)
     periodo_comp = models.ForeignKey(PeriodoCompComissao)
     cargo = models.ForeignKey(CargoComissao)
-    ind_titular = models.IntegerField()
+    titular = models.BooleanField()
     data_designacao = models.DateField()
     data_desligamento = models.DateField(blank=True, null=True)
     descricao_motivo_desligamento = models.CharField(max_length=150, blank=True, null=True)
diff --git a/materia/models.py b/materia/models.py
index 3814f9a8c..f9fb152e8 100644
--- a/materia/models.py
+++ b/materia/models.py
@@ -7,7 +7,7 @@ from parlamentares.models import Parlamentar, Partido
 class TipoMateriaLegislativa(models.Model):
     sigla_tipo_materia = models.CharField(max_length=5)
     descricao_tipo_materia = models.CharField(max_length=50)
-    ind_num_automatica = models.IntegerField()
+    num_automatica = models.BooleanField()
     quorum_minimo_votacao = models.IntegerField()
 
 
@@ -37,10 +37,10 @@ class MateriaLegislativa(models.Model):
     nome_apelido = models.CharField(max_length=50, blank=True, null=True)
     numero_dias_prazo = models.IntegerField(blank=True, null=True)
     data_fim_prazo = models.DateField(blank=True, null=True)
-    ind_tramitacao = models.IntegerField()
-    ind_polemica = models.IntegerField(blank=True, null=True)
+    indicador_tramitacao = models.BooleanField()
+    polemica = models.NullBooleanField(blank=True)
     descricao_objeto = models.CharField(max_length=150, blank=True, null=True)
-    ind_complementar = models.IntegerField(blank=True, null=True)
+    complementar = models.NullBooleanField(blank=True)
     txt_ementa = models.TextField()
     txt_indexacao = models.TextField(blank=True, null=True)
     txt_observacao = models.TextField(blank=True, null=True)
@@ -86,7 +86,7 @@ class Autor(models.Model):
 class Autoria(models.Model):
     autor = models.ForeignKey(Autor)
     materia = models.ForeignKey(MateriaLegislativa)
-    ind_primeiro_autor = models.IntegerField()
+    primeiro_autor = models.BooleanField()
 
 
 class DespachoInicial(models.Model):
@@ -126,7 +126,7 @@ class Numeracao(models.Model):
 class Orgao(models.Model):
     nome_orgao = models.CharField(max_length=60)
     sigla_orgao = models.CharField(max_length=10)
-    ind_unid_deliberativa = models.IntegerField()
+    unid_deliberativa = models.BooleanField()
     endereco_orgao = models.CharField(max_length=100, blank=True, null=True)
     numero_tel_orgao = models.CharField(max_length=50, blank=True, null=True)
 
@@ -154,7 +154,7 @@ class Parecer(models.Model):
 
 class TipoProposicao(models.Model):
     descricao_tipo_proposicao = models.CharField(max_length=50)
-    ind_mat_ou_doc = models.CharField(max_length=1)
+    mat_ou_doc = models.BooleanField()
     tipo_mat_ou_doc = models.IntegerField()
     nome_modelo = models.CharField(max_length=50)
 
@@ -175,8 +175,8 @@ class Proposicao(models.Model):
 class StatusTramitacao(models.Model):
     sigla_status = models.CharField(max_length=10)
     descricao_status = models.CharField(max_length=60)
-    ind_fim_tramitacao = models.IntegerField()
-    ind_retorno_tramitacao = models.IntegerField()
+    fim_tramitacao = models.BooleanField()
+    retorno_tramitacao = models.BooleanField()
 
 
 class UnidadeTramitacao(models.Model):
@@ -192,8 +192,8 @@ class Tramitacao(models.Model):
     unid_tram_local = models.ForeignKey(UnidadeTramitacao, blank=True, null=True, related_name='+')
     data_encaminha = models.DateField(blank=True, null=True)
     unid_tram_dest = models.ForeignKey(UnidadeTramitacao, blank=True, null=True, related_name='+')
-    ind_ult_tramitacao = models.IntegerField()
-    ind_urgencia = models.IntegerField()
+    ult_tramitacao = models.BooleanField()
+    urgencia = models.BooleanField()
     sigla_turno = models.CharField(max_length=1, blank=True, null=True)
     txt_tramitacao = models.TextField(blank=True, null=True)
     data_fim_prazo = models.DateField(blank=True, null=True)
diff --git a/norma/models.py b/norma/models.py
index ce8c7cd6a..9c2b66fd1 100644
--- a/norma/models.py
+++ b/norma/models.py
@@ -28,7 +28,7 @@ class NormaJuridica(models.Model):
     txt_ementa = models.TextField()
     txt_indexacao = models.TextField(blank=True, null=True)
     txt_observacao = models.TextField(blank=True, null=True)
-    ind_complemento = models.IntegerField(blank=True, null=True)
+    complemento = models.NullBooleanField(blank=True)
     assunto = models.ForeignKey(AssuntoNorma)  # XXX was a CharField (attention on migrate)
     data_vigencia = models.DateField(blank=True, null=True)
     timestamp = models.DateTimeField()
@@ -56,4 +56,4 @@ class VinculoNormaJuridica(models.Model):
     norma_referente = models.ForeignKey(NormaJuridica, related_name='+')
     norma_referida = models.ForeignKey(NormaJuridica, related_name='+')
     tipo_vinculo = models.CharField(max_length=1, blank=True, null=True)
-    ind_excluido = models.CharField(max_length=1)
+    excluido = models.BooleanField()
diff --git a/parlamentares/models.py b/parlamentares/models.py
index 42f713bdd..37714b57c 100644
--- a/parlamentares/models.py
+++ b/parlamentares/models.py
@@ -74,9 +74,9 @@ class Parlamentar(models.Model):
     nome_profissao = models.CharField(max_length=50, blank=True, null=True)
     endereco_email = models.CharField(max_length=100, blank=True, null=True)
     descricao_local_atuacao = models.CharField(max_length=100, blank=True, null=True)
-    ind_ativo = models.IntegerField()
+    ativo = models.BooleanField()
     txt_biografia = models.TextField(blank=True, null=True)
-    ind_unid_deliberativa = models.IntegerField()
+    unid_deliberativa = models.BooleanField()
 
 
 class TipoDependente(models.Model):
@@ -103,8 +103,8 @@ class Filiacao(models.Model):
 
 class TipoAfastamento(models.Model):
     descricao_afastamento = models.CharField(max_length=50)
-    ind_afastamento = models.IntegerField()
-    ind_fim_mandato = models.IntegerField()
+    afastamento = models.BooleanField()
+    fim_mandato = models.BooleanField()
     descricao_dispositivo = models.CharField(max_length=50, blank=True, null=True)
 
 
diff --git a/protocoloadm/models.py b/protocoloadm/models.py
index d67ad57aa..be82f9ca7 100644
--- a/protocoloadm/models.py
+++ b/protocoloadm/models.py
@@ -18,7 +18,7 @@ class DocumentoAdministrativo(models.Model):
     autor = models.ForeignKey(Autor, blank=True, null=True)
     numero_dias_prazo = models.IntegerField(blank=True, null=True)
     data_fim_prazo = models.DateField(blank=True, null=True)
-    ind_tramitacao = models.IntegerField()
+    tramitacao = models.BooleanField()
     txt_assunto = models.TextField()
     txt_observacao = models.TextField(blank=True, null=True)
 
@@ -49,7 +49,7 @@ class Protocolo(models.Model):
     tipo_materia = models.ForeignKey(TipoMateriaLegislativa, blank=True, null=True)
     numero_paginas = models.IntegerField(blank=True, null=True)
     txt_observacao = models.TextField(blank=True, null=True)
-    ind_anulado = models.IntegerField()
+    anulado = models.BooleanField()
     txt_user_anulacao = models.CharField(max_length=20, blank=True, null=True)
     txt_ip_anulacao = models.CharField(max_length=15, blank=True, null=True)
     txt_just_anulacao = models.CharField(max_length=60, blank=True, null=True)
@@ -59,8 +59,8 @@ class Protocolo(models.Model):
 class StatusTramitacaoAdministrativo(models.Model):
     sigla_status = models.CharField(max_length=10)
     descricao_status = models.CharField(max_length=60)
-    ind_fim_tramitacao = models.IntegerField()
-    ind_retorno_tramitacao = models.IntegerField()
+    fim_tramitacao = models.BooleanField()
+    retorno_tramitacao = models.BooleanField()
 
 
 class TramitacaoAdministrativo(models.Model):
@@ -70,6 +70,6 @@ class TramitacaoAdministrativo(models.Model):
     data_encaminha = models.DateField(blank=True, null=True)
     cod_unid_tram_dest = models.IntegerField(blank=True, null=True)
     status = models.ForeignKey(StatusTramitacaoAdministrativo, blank=True, null=True)
-    ind_ult_tramitacao = models.IntegerField()
+    ult_tramitacao = models.BooleanField()
     txt_tramitacao = models.TextField(blank=True, null=True)
     data_fim_prazo = models.DateField(blank=True, null=True)
diff --git a/sessao/models.py b/sessao/models.py
index 3f9900efe..dd4e2ca71 100644
--- a/sessao/models.py
+++ b/sessao/models.py
@@ -51,7 +51,7 @@ class MesaSessaoPlenaria(models.Model):
     sessao_leg = models.ForeignKey(SessaoLegislativa)
     parlamentar = models.ForeignKey(Parlamentar)
     sessao_plen = models.ForeignKey(SessaoPlenaria)
-    ind_excluido = models.IntegerField(blank=True, null=True)
+    excluido = models.NullBooleanField(blank=True)
 
 
 class Oradores(models.Model):