diff --git a/app/controllers/root_controller.rb b/app/controllers/root_controller.rb
index febfb25d1..3d16871fa 100644
--- a/app/controllers/root_controller.rb
+++ b/app/controllers/root_controller.rb
@@ -19,7 +19,7 @@ class RootController < ApplicationController
     description = 'a not so long description'
 
     all_champs = TypeDeChamp.type_champs
-      .map { |name, _| TypeDeChamp.new(type_champ: name, libelle: name, description: description, mandatory: true) }
+      .map { |name, _| TypeDeChamp.new(type_champ: name, private: false, libelle: name, description: description, mandatory: true) }
       .map.with_index { |type_de_champ, i| type_de_champ.champ.build(id: i) }
 
     all_champs
diff --git a/app/facades/admin_types_de_champ_facades.rb b/app/facades/admin_types_de_champ_facades.rb
index a8f7fe578..eefe7e57c 100644
--- a/app/facades/admin_types_de_champ_facades.rb
+++ b/app/facades/admin_types_de_champ_facades.rb
@@ -23,7 +23,7 @@ class AdminTypesDeChampFacades
   end
 
   def new_type_de_champ
-    @private ? TypeDeChampPrivate.new.decorate : TypeDeChampPublic.new.decorate
+    TypeDeChamp.new(private: @private).decorate
   end
 
   def fields_for_var
diff --git a/app/models/procedure.rb b/app/models/procedure.rb
index 7cf0c3d67..5441fbc3d 100644
--- a/app/models/procedure.rb
+++ b/app/models/procedure.rb
@@ -1,7 +1,7 @@
 class Procedure < ActiveRecord::Base
   has_many :types_de_piece_justificative, -> { order "order_place ASC" }, dependent: :destroy
-  has_many :types_de_champ, class_name: 'TypeDeChampPublic', dependent: :destroy
-  has_many :types_de_champ_private, dependent: :destroy
+  has_many :types_de_champ, -> { public_only }, dependent: :destroy
+  has_many :types_de_champ_private, -> { private_only }, class_name: 'TypeDeChamp', dependent: :destroy
   has_many :dossiers
 
   has_one :procedure_path, dependent: :destroy
diff --git a/app/models/type_de_champ.rb b/app/models/type_de_champ.rb
index 6df25d6a0..f6bf5a36d 100644
--- a/app/models/type_de_champ.rb
+++ b/app/models/type_de_champ.rb
@@ -1,4 +1,6 @@
 class TypeDeChamp < ActiveRecord::Base
+  self.inheritance_column = :_type_disabled
+
   enum type_champs: {
     text: 'text',
     textarea: 'textarea',
@@ -24,6 +26,9 @@ class TypeDeChamp < ActiveRecord::Base
 
   belongs_to :procedure
 
+  scope :public_only, -> { where.not(type: 'TypeDeChampPrivate').or(where(private: [false, nil])) }
+  scope :private_only, -> { where(type: 'TypeDeChampPrivate').or(where(private: true)) }
+
   has_many :champ, inverse_of: :type_de_champ, dependent: :destroy do
     def build(params = {})
       super(params.merge(proxy_association.owner.params_for_champ))
@@ -65,7 +70,7 @@ class TypeDeChamp < ActiveRecord::Base
   end
 
   def private?
-    type == 'TypeDeChampPrivate'
+    super || type == 'TypeDeChampPrivate'
   end
 
   def public?
diff --git a/app/models/type_de_champ_private.rb b/app/models/type_de_champ_private.rb
deleted file mode 100644
index ba6e89a82..000000000
--- a/app/models/type_de_champ_private.rb
+++ /dev/null
@@ -1,2 +0,0 @@
-class TypeDeChampPrivate < TypeDeChamp
-end
diff --git a/app/models/type_de_champ_public.rb b/app/models/type_de_champ_public.rb
deleted file mode 100644
index 3be990e13..000000000
--- a/app/models/type_de_champ_public.rb
+++ /dev/null
@@ -1,2 +0,0 @@
-class TypeDeChampPublic < TypeDeChamp
-end
diff --git a/app/services/types_de_champ_service.rb b/app/services/types_de_champ_service.rb
index 7f8cfe1e9..d4eb53a9b 100644
--- a/app/services/types_de_champ_service.rb
+++ b/app/services/types_de_champ_service.rb
@@ -13,17 +13,17 @@ class TypesDeChampService
         :type_champ,
         :id,
         :mandatory,
-        :type,
         drop_down_list_attributes: [:value, :id]
       ])
 
-    parameters[attributes].each do |param_first, param_second|
-      if param_second[:libelle].empty?
-        parameters[attributes].delete(param_first.to_s)
+    parameters[attributes].each do |index, param|
+      param[:private] = private
+      if param[:libelle].empty?
+        parameters[attributes].delete(index.to_s)
       end
 
-      if param_second['drop_down_list_attributes'] && param_second['drop_down_list_attributes']['value']
-        param_second['drop_down_list_attributes']['value'] = self.clean_value (param_second['drop_down_list_attributes']['value'])
+      if param['drop_down_list_attributes'] && param['drop_down_list_attributes']['value']
+        param['drop_down_list_attributes']['value'] = self.clean_value (param['drop_down_list_attributes']['value'])
       end
     end
 
diff --git a/spec/controllers/admin/types_de_champ_controller_spec.rb b/spec/controllers/admin/types_de_champ_controller_spec.rb
index d3b6fc8fa..e14f11107 100644
--- a/spec/controllers/admin/types_de_champ_controller_spec.rb
+++ b/spec/controllers/admin/types_de_champ_controller_spec.rb
@@ -57,8 +57,7 @@ describe Admin::TypesDeChampController, type: :controller do
             description: '',
             order_place: '1',
             id: '',
-            mandatory: false,
-            type: 'TypeDeChampPublic'
+            mandatory: false
           }
         }
       }
@@ -148,7 +147,7 @@ describe Admin::TypesDeChampController, type: :controller do
       end
     end
     context 'when procedure and type de champs are not linked' do
-      let(:type_de_champ) { create(:type_de_champ_public) }
+      let(:type_de_champ) { create(:type_de_champ) }
       let(:type_de_champ_id) { type_de_champ.id }
       it { expect(subject.status).to eq(404) }
     end
@@ -163,20 +162,20 @@ describe Admin::TypesDeChampController, type: :controller do
     end
     context 'when procedure have only one type de champ' do
       let(:index) { 1 }
-      let!(:type_de_champ) { create(:type_de_champ_public, procedure: procedure) }
+      let!(:type_de_champ) { create(:type_de_champ, procedure: procedure) }
       it { expect(subject.status).to eq(400) }
     end
     context 'when procedure have tow type de champs' do
       context 'when index == 0' do
         let(:index) { 0 }
-        let!(:type_de_champ_1) { create(:type_de_champ_public, procedure: procedure) }
-        let!(:type_de_champ_2) { create(:type_de_champ_public, procedure: procedure) }
+        let!(:type_de_champ_1) { create(:type_de_champ, procedure: procedure) }
+        let!(:type_de_champ_2) { create(:type_de_champ, procedure: procedure) }
         it { expect(subject.status).to eq(400) }
       end
       context 'when index > 0' do
         let(:index) { 1 }
-        let!(:type_de_champ_0) { create(:type_de_champ_public, procedure: procedure, order_place: 0) }
-        let!(:type_de_champ_1) { create(:type_de_champ_public, procedure: procedure, order_place: 1) }
+        let!(:type_de_champ_0) { create(:type_de_champ, procedure: procedure, order_place: 0) }
+        let!(:type_de_champ_1) { create(:type_de_champ, procedure: procedure, order_place: 1) }
 
         it { expect(subject.status).to eq(200) }
         it { expect(subject).to render_template('show') }
@@ -201,12 +200,12 @@ describe Admin::TypesDeChampController, type: :controller do
       it { expect(subject.status).to eq(400) }
     end
     context 'when procedure have only one type de champ' do
-      let!(:type_de_champ_0) { create(:type_de_champ_public, procedure: procedure) }
+      let!(:type_de_champ_0) { create(:type_de_champ, procedure: procedure) }
       it { expect(subject.status).to eq(400) }
     end
     context 'when procedure have 2 type de champ' do
-      let!(:type_de_champ_0) { create(:type_de_champ_public, procedure: procedure, order_place: 0) }
-      let!(:type_de_champ_1) { create(:type_de_champ_public, procedure: procedure, order_place: 1) }
+      let!(:type_de_champ_0) { create(:type_de_champ, procedure: procedure, order_place: 0) }
+      let!(:type_de_champ_1) { create(:type_de_champ, procedure: procedure, order_place: 1) }
       context 'when index represent last type_de_champ' do
         let(:index) { 1 }
         it { expect(subject.status).to eq(400) }
diff --git a/spec/controllers/admin/types_de_champ_private_controller_spec.rb b/spec/controllers/admin/types_de_champ_private_controller_spec.rb
index 61ab44966..d3a48202b 100644
--- a/spec/controllers/admin/types_de_champ_private_controller_spec.rb
+++ b/spec/controllers/admin/types_de_champ_private_controller_spec.rb
@@ -49,8 +49,7 @@ describe Admin::TypesDeChampPrivateController, type: :controller do
             description: description,
             order_place: order_place,
             id: types_de_champ_id,
-            mandatory: mandatory,
-            type: 'TypeDeChampPrivate'
+            mandatory: mandatory
           },
           '1' => {
             libelle: '',
@@ -58,8 +57,7 @@ describe Admin::TypesDeChampPrivateController, type: :controller do
             description: '',
             order_place: '1',
             id: '',
-            mandatory: false,
-            type: 'TypeDeChampPrivate'
+            mandatory: false
           }
         }
       }
@@ -131,7 +129,7 @@ describe Admin::TypesDeChampPrivateController, type: :controller do
       end
     end
     context 'when procedure and type de champs are not linked' do
-      let(:type_de_champ) { create(:type_de_champ_public) }
+      let(:type_de_champ) { create(:type_de_champ) }
       let(:type_de_champ_id) { type_de_champ.id }
       it { expect(subject.status).to eq(404) }
     end
@@ -146,20 +144,20 @@ describe Admin::TypesDeChampPrivateController, type: :controller do
     end
     context 'when procedure have only one type de champ' do
       let(:index) { 1 }
-      let!(:type_de_champ) { create(:type_de_champ_private, procedure: procedure) }
+      let!(:type_de_champ) { create(:type_de_champ, :private, procedure: procedure) }
       it { expect(subject.status).to eq(400) }
     end
     context 'when procedure have tow type de champs' do
       context 'when index == 0' do
         let(:index) { 0 }
-        let!(:type_de_champ_1) { create(:type_de_champ_private, procedure: procedure) }
-        let!(:type_de_champ_2) { create(:type_de_champ_private, procedure: procedure) }
+        let!(:type_de_champ_1) { create(:type_de_champ, :private, procedure: procedure) }
+        let!(:type_de_champ_2) { create(:type_de_champ, :private, procedure: procedure) }
         it { expect(subject.status).to eq(400) }
       end
       context 'when index > 0' do
         let(:index) { 1 }
-        let!(:type_de_champ_0) { create(:type_de_champ_private, procedure: procedure, order_place: 0) }
-        let!(:type_de_champ_1) { create(:type_de_champ_private, procedure: procedure, order_place: 1) }
+        let!(:type_de_champ_0) { create(:type_de_champ, :private, procedure: procedure, order_place: 0) }
+        let!(:type_de_champ_1) { create(:type_de_champ, :private, procedure: procedure, order_place: 1) }
 
         it { expect(subject.status).to eq(200) }
         it { expect(subject).to render_template('show') }
@@ -184,12 +182,12 @@ describe Admin::TypesDeChampPrivateController, type: :controller do
       it { expect(subject.status).to eq(400) }
     end
     context 'when procedure have only one type de champ' do
-      let!(:type_de_champ_0) { create(:type_de_champ_private, procedure: procedure) }
+      let!(:type_de_champ_0) { create(:type_de_champ, :private, procedure: procedure) }
       it { expect(subject.status).to eq(400) }
     end
     context 'when procedure have 2 type de champ' do
-      let!(:type_de_champ_0) { create(:type_de_champ_private, procedure: procedure, order_place: 0) }
-      let!(:type_de_champ_1) { create(:type_de_champ_private, procedure: procedure, order_place: 1) }
+      let!(:type_de_champ_0) { create(:type_de_champ, :private, procedure: procedure, order_place: 0) }
+      let!(:type_de_champ_1) { create(:type_de_champ, :private, procedure: procedure, order_place: 1) }
       context 'when index represent last type_de_champ' do
         let(:index) { 1 }
         it { expect(subject.status).to eq(400) }
diff --git a/spec/controllers/new_gestionnaire/dossiers_controller_spec.rb b/spec/controllers/new_gestionnaire/dossiers_controller_spec.rb
index 5a08115b3..be6329132 100644
--- a/spec/controllers/new_gestionnaire/dossiers_controller_spec.rb
+++ b/spec/controllers/new_gestionnaire/dossiers_controller_spec.rb
@@ -355,11 +355,11 @@ describe NewGestionnaire::DossiersController, type: :controller do
 
   describe "#update_annotations" do
     let(:champ_multiple_drop_down_list) do
-      create(:type_de_champ_private, type_champ: 'multiple_drop_down_list', libelle: 'libelle').champ.create
+      create(:type_de_champ, :private, type_champ: 'multiple_drop_down_list', libelle: 'libelle').champ.create
     end
 
     let(:champ_datetime) do
-      create(:type_de_champ_private, type_champ: 'datetime', libelle: 'libelle').champ.create
+      create(:type_de_champ, :private, type_champ: 'datetime', libelle: 'libelle').champ.create
     end
 
     let(:dossier) do
diff --git a/spec/decorators/champ_decorator_spec.rb b/spec/decorators/champ_decorator_spec.rb
index c01beac14..101483406 100644
--- a/spec/decorators/champ_decorator_spec.rb
+++ b/spec/decorators/champ_decorator_spec.rb
@@ -1,7 +1,8 @@
 require 'spec_helper'
 
 describe ChampDecorator do
-  let(:champ) { create :champ, type_de_champ: (create :type_de_champ_public, type_champ: type_champ) }
+  let(:type_de_champ) { create(:type_de_champ, type_champ: type_champ) }
+  let(:champ) { type_de_champ.champ.create }
   let(:decorator) { champ.decorate }
 
   describe 'value' do
diff --git a/spec/decorators/type_de_champ_decorator_spec.rb b/spec/decorators/type_de_champ_decorator_spec.rb
index 0a6ac784a..7a490aefc 100644
--- a/spec/decorators/type_de_champ_decorator_spec.rb
+++ b/spec/decorators/type_de_champ_decorator_spec.rb
@@ -4,9 +4,9 @@ describe TypeDeChampDecorator do
   let(:procedure) { create(:procedure) }
   let(:url) { 'http://localhost' }
   let(:params) { { url: url, index: index } }
-  let!(:type_de_champ_0) { create(:type_de_champ_public, procedure: procedure, order_place: 0) }
-  let!(:type_de_champ_1) { create(:type_de_champ_public, procedure: procedure, order_place: 1) }
-  let!(:type_de_champ_2) { create(:type_de_champ_public, procedure: procedure, order_place: 2) }
+  let!(:type_de_champ_0) { create(:type_de_champ, procedure: procedure, order_place: 0) }
+  let!(:type_de_champ_1) { create(:type_de_champ, procedure: procedure, order_place: 1) }
+  let!(:type_de_champ_2) { create(:type_de_champ, procedure: procedure, order_place: 2) }
 
   describe '#button_up' do
     describe 'with first piece justificative' do
diff --git a/spec/factories/champ.rb b/spec/factories/champ.rb
index ee5917834..f6570f6f4 100644
--- a/spec/factories/champ.rb
+++ b/spec/factories/champ.rb
@@ -1,21 +1,21 @@
 FactoryBot.define do
   factory :champ do
-    type_de_champ { FactoryBot.create(:type_de_champ_public) }
+    type_de_champ { FactoryBot.create(:type_de_champ) }
 
     trait :checkbox do
-      type_de_champ { FactoryBot.create(:type_de_champ_public, :checkbox) }
+      type_de_champ { FactoryBot.create(:type_de_champ, :checkbox) }
     end
 
     trait :header_section do
-      type_de_champ { FactoryBot.create(:type_de_champ_public, :header_section) }
+      type_de_champ { FactoryBot.create(:type_de_champ, :header_section) }
     end
 
     trait :explication do
-      type_de_champ { FactoryBot.create(:type_de_champ_public, :explication) }
+      type_de_champ { FactoryBot.create(:type_de_champ, :explication) }
     end
 
     trait :dossier_link do
-      type_de_champ { FactoryBot.create(:type_de_champ_public, :type_dossier_link) }
+      type_de_champ { FactoryBot.create(:type_de_champ, :type_dossier_link) }
     end
   end
 end
diff --git a/spec/factories/procedure.rb b/spec/factories/procedure.rb
index 29892706d..656a0631b 100644
--- a/spec/factories/procedure.rb
+++ b/spec/factories/procedure.rb
@@ -36,7 +36,7 @@ FactoryBot.define do
 
       after(:build) do |procedure, evaluator|
         evaluator.types_de_champ_count.times do
-          type_de_champ = create(:type_de_champ_public)
+          type_de_champ = create(:type_de_champ)
 
           procedure.types_de_champ << type_de_champ
         end
@@ -50,7 +50,7 @@ FactoryBot.define do
 
       after(:build) do |procedure, evaluator|
         evaluator.types_de_champ_private_count.times do
-          type_de_champ = create(:type_de_champ_private)
+          type_de_champ = create(:type_de_champ, :private)
 
           procedure.types_de_champ_private << type_de_champ
         end
@@ -59,7 +59,7 @@ FactoryBot.define do
 
     trait :with_type_de_champ_mandatory do
       after(:build) do |procedure, _evaluator|
-        type_de_champ = create(:type_de_champ_public, mandatory: true)
+        type_de_champ = create(:type_de_champ, mandatory: true)
 
         procedure.types_de_champ << type_de_champ
       end
@@ -67,7 +67,7 @@ FactoryBot.define do
 
     trait :with_datetime do
       after(:build) do |procedure, _evaluator|
-        type_de_champ = create(:type_de_champ_public, mandatory: true, type_champ: :datetime)
+        type_de_champ = create(:type_de_champ, mandatory: true, type_champ: :datetime)
 
         procedure.types_de_champ << type_de_champ
       end
@@ -75,7 +75,7 @@ FactoryBot.define do
 
     trait :with_dossier_link do
       after(:build) do |procedure, _evaluator|
-        type_de_champ = create(:type_de_champ_public, :type_dossier_link)
+        type_de_champ = create(:type_de_champ, :type_dossier_link)
 
         procedure.types_de_champ << type_de_champ
       end
@@ -83,7 +83,7 @@ FactoryBot.define do
 
     trait :with_yes_no do
       after(:build) do |procedure, _evaluator|
-        type_de_champ = create(:type_de_champ_public, :type_yes_no)
+        type_de_champ = create(:type_de_champ, :type_yes_no)
 
         procedure.types_de_champ << type_de_champ
       end
diff --git a/spec/factories/type_de_champ_public.rb b/spec/factories/type_de_champ.rb
similarity index 76%
rename from spec/factories/type_de_champ_public.rb
rename to spec/factories/type_de_champ.rb
index 7f63092cf..5752a5aec 100644
--- a/spec/factories/type_de_champ_public.rb
+++ b/spec/factories/type_de_champ.rb
@@ -1,5 +1,6 @@
 FactoryBot.define do
-  factory :type_de_champ_public do
+  factory :type_de_champ do
+    private false
     sequence(:libelle) { |n| "Libelle du champ #{n}" }
     sequence(:description) { |n| "description du champ #{n}" }
     type_champ 'text'
@@ -33,5 +34,11 @@ FactoryBot.define do
       type_champ 'drop_down_list'
       drop_down_list { create(:drop_down_list) }
     end
+
+    trait :private do
+      private true
+      sequence(:libelle) { |n| "Libelle champ privé #{n}" }
+      sequence(:description) { |n| "description du champ privé #{n}" }
+    end
   end
 end
diff --git a/spec/factories/type_de_champ_private.rb b/spec/factories/type_de_champ_private.rb
deleted file mode 100644
index d804dd42b..000000000
--- a/spec/factories/type_de_champ_private.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-FactoryBot.define do
-  factory :type_de_champ_private do
-    sequence(:libelle) { |n| "Libelle champ privé #{n}" }
-    sequence(:description) { |n| "description du champ privé #{n}" }
-    type_champ 'text'
-    order_place 1
-    mandatory false
-
-    trait :type_drop_down_list do
-      libelle 'Menu déroulant'
-      type_champ 'drop_down_list'
-      drop_down_list { create(:drop_down_list) }
-    end
-  end
-end
diff --git a/spec/features/admin/move_down_type_de_champ_private_spec.rb b/spec/features/admin/move_down_type_de_champ_private_spec.rb
index b811617a0..87d0f98ef 100644
--- a/spec/features/admin/move_down_type_de_champ_private_spec.rb
+++ b/spec/features/admin/move_down_type_de_champ_private_spec.rb
@@ -8,10 +8,10 @@ feature 'move down button type de champs', js: true do
   end
 
   let(:procedure) { create(:procedure, administrateur: administrateur) }
-  let!(:type_de_champ_0) { create(:type_de_champ_private, procedure: procedure, order_place: 0) }
-  let!(:type_de_champ_1) { create(:type_de_champ_private, procedure: procedure, order_place: 1) }
-  let!(:type_de_champ_2) { create(:type_de_champ_private, procedure: procedure, order_place: 2) }
-  let!(:type_de_champ_3) { create(:type_de_champ_private, procedure: procedure, order_place: 3) }
+  let!(:type_de_champ_0) { create(:type_de_champ, :private, procedure: procedure, order_place: 0) }
+  let!(:type_de_champ_1) { create(:type_de_champ, :private, procedure: procedure, order_place: 1) }
+  let!(:type_de_champ_2) { create(:type_de_champ, :private, procedure: procedure, order_place: 2) }
+  let!(:type_de_champ_3) { create(:type_de_champ, :private, procedure: procedure, order_place: 3) }
 
   context 'when clicking on move down for type de champ 1' do
     before do
diff --git a/spec/features/admin/move_down_type_de_champ_spec.rb b/spec/features/admin/move_down_type_de_champ_spec.rb
index 0e9243cf9..84f291caf 100644
--- a/spec/features/admin/move_down_type_de_champ_spec.rb
+++ b/spec/features/admin/move_down_type_de_champ_spec.rb
@@ -8,10 +8,10 @@ feature 'move down button type de champs', js: true do
   end
 
   let(:procedure) { create(:procedure, administrateur: administrateur) }
-  let!(:type_de_champ_0) { create(:type_de_champ_public, procedure: procedure, order_place: 0) }
-  let!(:type_de_champ_1) { create(:type_de_champ_public, procedure: procedure, order_place: 1) }
-  let!(:type_de_champ_2) { create(:type_de_champ_public, procedure: procedure, order_place: 2) }
-  let!(:type_de_champ_3) { create(:type_de_champ_public, procedure: procedure, order_place: 3) }
+  let!(:type_de_champ_0) { create(:type_de_champ, procedure: procedure, order_place: 0) }
+  let!(:type_de_champ_1) { create(:type_de_champ, procedure: procedure, order_place: 1) }
+  let!(:type_de_champ_2) { create(:type_de_champ, procedure: procedure, order_place: 2) }
+  let!(:type_de_champ_3) { create(:type_de_champ, procedure: procedure, order_place: 3) }
 
   context 'when clicking on move down for type de champ 1' do
     before do
diff --git a/spec/features/admin/move_up_type_de_champ_private_spec.rb b/spec/features/admin/move_up_type_de_champ_private_spec.rb
index 377fcea61..b0f0bec29 100644
--- a/spec/features/admin/move_up_type_de_champ_private_spec.rb
+++ b/spec/features/admin/move_up_type_de_champ_private_spec.rb
@@ -8,10 +8,10 @@ feature 'move up button type de champs', js: true do
   end
 
   let(:procedure) { create(:procedure, administrateur: administrateur) }
-  let!(:type_de_champ_0) { create(:type_de_champ_private, procedure: procedure, order_place: 0) }
-  let!(:type_de_champ_1) { create(:type_de_champ_private, procedure: procedure, order_place: 1) }
-  let!(:type_de_champ_2) { create(:type_de_champ_private, procedure: procedure, order_place: 2) }
-  let!(:type_de_champ_3) { create(:type_de_champ_private, procedure: procedure, order_place: 3) }
+  let!(:type_de_champ_0) { create(:type_de_champ, :private, procedure: procedure, order_place: 0) }
+  let!(:type_de_champ_1) { create(:type_de_champ, :private, procedure: procedure, order_place: 1) }
+  let!(:type_de_champ_2) { create(:type_de_champ, :private, procedure: procedure, order_place: 2) }
+  let!(:type_de_champ_3) { create(:type_de_champ, :private, procedure: procedure, order_place: 3) }
 
   context 'when clicking on move down for type de champ 1' do
     before do
diff --git a/spec/features/admin/move_up_type_de_champ_spec.rb b/spec/features/admin/move_up_type_de_champ_spec.rb
index 28c0ab9f5..4f0679509 100644
--- a/spec/features/admin/move_up_type_de_champ_spec.rb
+++ b/spec/features/admin/move_up_type_de_champ_spec.rb
@@ -8,10 +8,10 @@ feature 'move up button type de champs', js: true do
   end
 
   let(:procedure) { create(:procedure, administrateur: administrateur) }
-  let!(:type_de_champ_0) { create(:type_de_champ_public, procedure: procedure, order_place: 0) }
-  let!(:type_de_champ_1) { create(:type_de_champ_public, procedure: procedure, order_place: 1) }
-  let!(:type_de_champ_2) { create(:type_de_champ_public, procedure: procedure, order_place: 2) }
-  let!(:type_de_champ_3) { create(:type_de_champ_public, procedure: procedure, order_place: 3) }
+  let!(:type_de_champ_0) { create(:type_de_champ, procedure: procedure, order_place: 0) }
+  let!(:type_de_champ_1) { create(:type_de_champ, procedure: procedure, order_place: 1) }
+  let!(:type_de_champ_2) { create(:type_de_champ, procedure: procedure, order_place: 2) }
+  let!(:type_de_champ_3) { create(:type_de_champ, procedure: procedure, order_place: 3) }
 
   context 'when clicking on move down for type de champ 1' do
     before do
diff --git a/spec/features/users/flux_de_commentaires_spec.rb b/spec/features/users/flux_de_commentaires_spec.rb
index b39c5717e..92a68e63f 100644
--- a/spec/features/users/flux_de_commentaires_spec.rb
+++ b/spec/features/users/flux_de_commentaires_spec.rb
@@ -6,7 +6,7 @@ feature 'users: flux de commentaires' do
   let(:dossier_id) { dossier.id }
 
   let(:champ1) { dossier.champs.first }
-  let(:champ2) { create(:champ, dossier: dossier, type_de_champ: create(:type_de_champ_public, libelle: "subtitle")) }
+  let(:champ2) { create(:champ, dossier: dossier, type_de_champ: create(:type_de_champ, libelle: "subtitle")) }
 
   let!(:commentaire1) { create(:commentaire, dossier: dossier, champ: champ1) }
   let!(:commentaire2) { create(:commentaire, dossier: dossier) }
diff --git a/spec/jobs/find_dubious_procedures_job_spec.rb b/spec/jobs/find_dubious_procedures_job_spec.rb
index d18ac6992..ba34e3cb3 100644
--- a/spec/jobs/find_dubious_procedures_job_spec.rb
+++ b/spec/jobs/find_dubious_procedures_job_spec.rb
@@ -4,7 +4,7 @@ RSpec.describe FindDubiousProceduresJob, type: :job do
   describe 'perform' do
     let(:mailer_double) { double('mailer', deliver_now: true) }
     let(:procedure) { create(:procedure) }
-    let(:allowed_tdc) { create(:type_de_champ_public, libelle: 'fournir') }
+    let(:allowed_tdc) { create(:type_de_champ, libelle: 'fournir') }
 
     before do
       allow(AdministrationMailer).to receive(:dubious_procedures)
@@ -17,8 +17,8 @@ RSpec.describe FindDubiousProceduresJob, type: :job do
     context 'with suspicious champs' do
       let(:forbidden_tdcs) do
         [
-          create(:type_de_champ_public, libelle: 'num de securite sociale, stp'),
-          create(:type_de_champ_public, libelle: "t'aurais une carte bancaire ?")
+          create(:type_de_champ, libelle: 'num de securite sociale, stp'),
+          create(:type_de_champ, libelle: "t'aurais une carte bancaire ?")
         ]
       end
 
diff --git a/spec/models/attestation_template_spec.rb b/spec/models/attestation_template_spec.rb
index 455907c8a..680c72ef2 100644
--- a/spec/models/attestation_template_spec.rb
+++ b/spec/models/attestation_template_spec.rb
@@ -149,8 +149,8 @@ describe AttestationTemplate, type: :model do
     context 'when the procedure has a type de champ named libelleA et libelleB' do
       let(:types_de_champ) do
         [
-          create(:type_de_champ_public, libelle: 'libelleA'),
-          create(:type_de_champ_public, libelle: 'libelleB')
+          create(:type_de_champ, libelle: 'libelleA'),
+          create(:type_de_champ, libelle: 'libelleB')
         ]
       end
 
diff --git a/spec/models/champ_private_spec.rb b/spec/models/champ_private_spec.rb
index 5e3dee9af..c6f60362a 100644
--- a/spec/models/champ_private_spec.rb
+++ b/spec/models/champ_private_spec.rb
@@ -2,7 +2,7 @@ require 'spec_helper'
 
 describe Champ do
   describe '#private?' do
-    let(:type_de_champ) { build(:type_de_champ_private) }
+    let(:type_de_champ) { build(:type_de_champ, :private) }
     let(:champ) { type_de_champ.champ.build }
 
     it { expect(champ.private?).to be_truthy }
diff --git a/spec/models/champ_shared_example.rb b/spec/models/champ_shared_example.rb
index 6c42ed032..2fd1a1a3f 100644
--- a/spec/models/champ_shared_example.rb
+++ b/spec/models/champ_shared_example.rb
@@ -1,6 +1,6 @@
 shared_examples 'champ_spec' do
   describe 'mandatory_and_blank?' do
-    let(:type_de_champ) { build(:type_de_champ_public, mandatory: mandatory) }
+    let(:type_de_champ) { build(:type_de_champ, mandatory: mandatory) }
     let(:champ) { type_de_champ.champ.build(value: value) }
     let(:value) { '' }
     let(:mandatory) { true }
@@ -33,7 +33,7 @@ shared_examples 'champ_spec' do
   end
 
   context "when type_champ=date" do
-    let(:type_de_champ) { create(:type_de_champ_public, type_champ: "date") }
+    let(:type_de_champ) { create(:type_de_champ, type_champ: "date") }
     let(:champ) { type_de_champ.champ.create }
 
     it "should convert %d/%m/%Y format to ISO" do
diff --git a/spec/models/champ_spec.rb b/spec/models/champ_spec.rb
index f56a0f390..5a4f1d15c 100644
--- a/spec/models/champ_spec.rb
+++ b/spec/models/champ_spec.rb
@@ -6,7 +6,7 @@ describe Champ do
   it_should_behave_like "champ_spec"
 
   describe '#public?' do
-    let(:type_de_champ) { build(:type_de_champ_public) }
+    let(:type_de_champ) { build(:type_de_champ) }
     let(:champ) { type_de_champ.champ.build }
 
     it { expect(champ.public?).to be_truthy }
@@ -14,7 +14,7 @@ describe Champ do
   end
 
   describe '#format_datetime' do
-    let(:type_de_champ) { build(:type_de_champ_public, type_champ: 'datetime') }
+    let(:type_de_champ) { build(:type_de_champ, type_champ: 'datetime') }
     let(:champ) { type_de_champ.champ.build(value: value) }
 
     before { champ.save }
@@ -33,7 +33,7 @@ describe Champ do
   end
 
   describe '#multiple_select_to_string' do
-    let(:type_de_champ) { build(:type_de_champ_public, type_champ: 'multiple_drop_down_list') }
+    let(:type_de_champ) { build(:type_de_champ, type_champ: 'multiple_drop_down_list') }
     let(:champ) { type_de_champ.champ.build(value: value) }
 
     before { champ.save }
@@ -71,7 +71,7 @@ describe Champ do
   end
 
   describe 'for_export' do
-    let(:type_de_champ) { create(:type_de_champ_public, type_champ: type_champ) }
+    let(:type_de_champ) { create(:type_de_champ, type_champ: type_champ) }
     let(:champ) { type_de_champ.champ.build(value: value) }
 
     before { champ.save }
diff --git a/spec/models/concern/tags_substitution_concern_spec.rb b/spec/models/concern/tags_substitution_concern_spec.rb
index 4f6f185a2..42cc2bd44 100644
--- a/spec/models/concern/tags_substitution_concern_spec.rb
+++ b/spec/models/concern/tags_substitution_concern_spec.rb
@@ -71,8 +71,8 @@ describe TagsSubstitutionConcern, type: :model do
     context 'when the procedure has a type de champ named libelleA et libelleB' do
       let(:types_de_champ) do
         [
-          create(:type_de_champ_public, libelle: 'libelleA'),
-          create(:type_de_champ_public, libelle: 'libelleB')
+          create(:type_de_champ, libelle: 'libelleA'),
+          create(:type_de_champ, libelle: 'libelleB')
         ]
       end
 
@@ -123,7 +123,7 @@ describe TagsSubstitutionConcern, type: :model do
     end
 
     context 'when the procedure has a type de champ prive named libelleA' do
-      let(:types_de_champ_private) { [create(:type_de_champ_private, libelle: 'libelleA')] }
+      let(:types_de_champ_private) { [create(:type_de_champ, :private, libelle: 'libelleA')] }
 
       context 'and it is used in the template' do
         let(:template) { '--libelleA--' }
@@ -144,13 +144,13 @@ describe TagsSubstitutionConcern, type: :model do
         # The dossier just transitionned from brouillon to en construction,
         # so champs private are not valid tags yet
 
-        let(:types_de_champ_private) { [create(:type_de_champ_private, libelle: 'libelleA')] }
+        let(:types_de_champ_private) { [create(:type_de_champ, :private, libelle: 'libelleA')] }
 
         it { is_expected.to eq('--libelleA--') }
       end
 
       context 'champs publics are valid tags' do
-        let(:types_de_champ) { [create(:type_de_champ_public, libelle: 'libelleA')] }
+        let(:types_de_champ) { [create(:type_de_champ, libelle: 'libelleA')] }
 
         before { dossier.champs.first.update_attributes(value: 'libelle1') }
 
@@ -161,8 +161,8 @@ describe TagsSubstitutionConcern, type: :model do
     context 'when the procedure has 2 types de champ date and datetime' do
       let(:types_de_champ) do
         [
-          create(:type_de_champ_public, libelle: 'date', type_champ: 'date'),
-          create(:type_de_champ_public, libelle: 'datetime', type_champ: 'datetime')
+          create(:type_de_champ, libelle: 'date', type_champ: 'date'),
+          create(:type_de_champ, libelle: 'datetime', type_champ: 'datetime')
         ]
       end
 
@@ -224,13 +224,13 @@ describe TagsSubstitutionConcern, type: :model do
 
       shared_examples "treat all kinds of space as equivalent" do
         context 'and the champ has a non breaking space' do
-          let(:types_de_champ) { [create(:type_de_champ_public, libelle: 'mon tag')] }
+          let(:types_de_champ) { [create(:type_de_champ, libelle: 'mon tag')] }
 
           it { is_expected.to eq('valeur') }
         end
 
         context 'and the champ has an ordinary space' do
-          let(:types_de_champ) { [create(:type_de_champ_public, libelle: 'mon tag')] }
+          let(:types_de_champ) { [create(:type_de_champ, libelle: 'mon tag')] }
 
           it { is_expected.to eq('valeur') }
         end
@@ -265,8 +265,8 @@ describe TagsSubstitutionConcern, type: :model do
   describe 'tags' do
     subject { template_concern.tags }
 
-    let(:types_de_champ) { [create(:type_de_champ_public, libelle: 'public')] }
-    let(:types_de_champ_private) { [create(:type_de_champ_private, libelle: 'privé')] }
+    let(:types_de_champ) { [create(:type_de_champ, libelle: 'public')] }
+    let(:types_de_champ_private) { [create(:type_de_champ, :private, libelle: 'privé')] }
 
     context 'when generating a document for a dossier terminé' do
       it { is_expected.to include(include({ libelle: 'motivation' })) }
diff --git a/spec/models/dossier_spec.rb b/spec/models/dossier_spec.rb
index 5f8f32820..4dc9e35f0 100644
--- a/spec/models/dossier_spec.rb
+++ b/spec/models/dossier_spec.rb
@@ -349,9 +349,9 @@ describe Dossier do
     let(:dossier) { Dossier.create(user: create(:user), procedure: procedure) }
 
     before do
-      create(:type_de_champ_public, libelle: 'l1', order_place: 1, procedure: procedure)
-      create(:type_de_champ_public, libelle: 'l3', order_place: 3, procedure: procedure)
-      create(:type_de_champ_public, libelle: 'l2', order_place: 2, procedure: procedure)
+      create(:type_de_champ, libelle: 'l1', order_place: 1, procedure: procedure)
+      create(:type_de_champ, libelle: 'l3', order_place: 3, procedure: procedure)
+      create(:type_de_champ, libelle: 'l2', order_place: 2, procedure: procedure)
     end
 
     it { expect(dossier.ordered_champs.pluck(:libelle)).to match(%w(l1 l2 l3)) }
@@ -362,9 +362,9 @@ describe Dossier do
     let(:dossier) { Dossier.create(user: create(:user), procedure: procedure) }
 
     before do
-      create :type_de_champ_private, libelle: 'l1', order_place: 1, procedure: procedure
-      create :type_de_champ_private, libelle: 'l3', order_place: 3, procedure: procedure
-      create :type_de_champ_private, libelle: 'l2', order_place: 2, procedure: procedure
+      create :type_de_champ, :private, libelle: 'l1', order_place: 1, procedure: procedure
+      create :type_de_champ, :private, libelle: 'l3', order_place: 3, procedure: procedure
+      create :type_de_champ, :private, libelle: 'l2', order_place: 2, procedure: procedure
     end
 
     it { expect(dossier.ordered_champs_private.pluck(:libelle)).to match(%w(l1 l2 l3)) }
diff --git a/spec/models/drop_down_list_spec.rb b/spec/models/drop_down_list_spec.rb
index 3f01f7148..130edcdd1 100644
--- a/spec/models/drop_down_list_spec.rb
+++ b/spec/models/drop_down_list_spec.rb
@@ -47,14 +47,14 @@ describe DropDownList do
     end
 
     context 'when multiple' do
-      let(:type_de_champ) { build(:type_de_champ_public, type_champ: 'multiple_drop_down_list') }
+      let(:type_de_champ) { build(:type_de_champ, type_champ: 'multiple_drop_down_list') }
       let(:champ) { type_de_champ.champ.build(value: '["1","2"]').decorate }
 
       it { expect(dropdownlist.selected_options(champ)).to match(['1', '2']) }
     end
 
     context 'when simple' do
-      let(:type_de_champ) { build(:type_de_champ_public, type_champ: 'drop_down_list') }
+      let(:type_de_champ) { build(:type_de_champ, type_champ: 'drop_down_list') }
       let(:champ) { type_de_champ.champ.build(value: '1').decorate }
 
       it { expect(dropdownlist.selected_options(champ)).to match(['1']) }
diff --git a/spec/models/procedure_spec.rb b/spec/models/procedure_spec.rb
index c749185e8..827205514 100644
--- a/spec/models/procedure_spec.rb
+++ b/spec/models/procedure_spec.rb
@@ -69,8 +69,8 @@ describe Procedure do
 
   describe '#types_de_champ_ordered' do
     let(:procedure) { create(:procedure) }
-    let!(:type_de_champ_0) { create(:type_de_champ_public, procedure: procedure, order_place: 1) }
-    let!(:type_de_champ_1) { create(:type_de_champ_public, procedure: procedure, order_place: 0) }
+    let!(:type_de_champ_0) { create(:type_de_champ, procedure: procedure, order_place: 1) }
+    let!(:type_de_champ_1) { create(:type_de_champ, procedure: procedure, order_place: 0) }
     subject { procedure.types_de_champ_ordered }
     it { expect(subject.first).to eq(type_de_champ_1) }
     it { expect(subject.last).to eq(type_de_champ_0) }
@@ -85,8 +85,8 @@ describe Procedure do
       it { expect(subject).to eq(false) }
     end
     context 'when procedure have 2 types de champ' do
-      let!(:type_de_champ_0) { create(:type_de_champ_public, procedure: procedure, order_place: 0) }
-      let!(:type_de_champ_1) { create(:type_de_champ_public, procedure: procedure, order_place: 1) }
+      let!(:type_de_champ_0) { create(:type_de_champ, procedure: procedure, order_place: 0) }
+      let!(:type_de_champ_1) { create(:type_de_champ, procedure: procedure, order_place: 1) }
       context 'when index is not the last element' do
         it { expect(subject).to eq(true) }
         it 'switch order place' do
@@ -153,12 +153,12 @@ describe Procedure do
     let(:archived_at) { nil }
     let(:published_at) { nil }
     let(:procedure) { create(:procedure, archived_at: archived_at, published_at: published_at, received_mail: received_mail) }
-    let!(:type_de_champ_0) { create(:type_de_champ_public, procedure: procedure, order_place: 0) }
-    let!(:type_de_champ_1) { create(:type_de_champ_public, procedure: procedure, order_place: 1) }
-    let!(:type_de_champ_2) { create(:type_de_champ_public, :type_drop_down_list, procedure: procedure, order_place: 2) }
-    let!(:type_de_champ_private_0) { create(:type_de_champ_private, procedure: procedure, order_place: 0) }
-    let!(:type_de_champ_private_1) { create(:type_de_champ_private, procedure: procedure, order_place: 1) }
-    let!(:type_de_champ_private_2) { create(:type_de_champ_private, :type_drop_down_list, procedure: procedure, order_place: 2) }
+    let!(:type_de_champ_0) { create(:type_de_champ, procedure: procedure, order_place: 0) }
+    let!(:type_de_champ_1) { create(:type_de_champ, procedure: procedure, order_place: 1) }
+    let!(:type_de_champ_2) { create(:type_de_champ, :type_drop_down_list, procedure: procedure, order_place: 2) }
+    let!(:type_de_champ_private_0) { create(:type_de_champ, :private, procedure: procedure, order_place: 0) }
+    let!(:type_de_champ_private_1) { create(:type_de_champ, :private, procedure: procedure, order_place: 1) }
+    let!(:type_de_champ_private_2) { create(:type_de_champ, :private, :type_drop_down_list, procedure: procedure, order_place: 2) }
     let!(:piece_justificative_0) { create(:type_de_piece_justificative, procedure: procedure, order_place: 0) }
     let!(:piece_justificative_1) { create(:type_de_piece_justificative, procedure: procedure, order_place: 1) }
     let(:received_mail){ create(:received_mail) }
@@ -342,10 +342,10 @@ describe Procedure do
       it { expect(subject[:headers]).to eq(dossier.export_headers) }
 
       context 'with ordered champs' do
-        let(:tc_2) { create(:type_de_champ_public, order_place: 2) }
-        let(:tc_1) { create(:type_de_champ_public, order_place: 1) }
-        let(:tcp_2) { create(:type_de_champ_private, order_place: 2) }
-        let(:tcp_1) { create(:type_de_champ_private, order_place: 1) }
+        let(:tc_2) { create(:type_de_champ, order_place: 2) }
+        let(:tc_1) { create(:type_de_champ, order_place: 1) }
+        let(:tcp_2) { create(:type_de_champ, :private, order_place: 2) }
+        let(:tcp_1) { create(:type_de_champ, :private, order_place: 1) }
 
         before do
           procedure.types_de_champ << tc_2 << tc_1
diff --git a/spec/models/type_de_champ_private_spec.rb b/spec/models/type_de_champ_private_spec.rb
index 6f0b1ce8a..161897d8e 100644
--- a/spec/models/type_de_champ_private_spec.rb
+++ b/spec/models/type_de_champ_private_spec.rb
@@ -1,7 +1,10 @@
 require 'spec_helper'
 
-describe TypeDeChampPrivate do
-  require 'models/type_de_champ_shared_example'
+describe TypeDeChamp do
+  describe '#private?' do
+    let(:type_de_champ) { build(:type_de_champ, :private) }
 
-  it_should_behave_like "type_de_champ_spec"
+    it { expect(type_de_champ.private?).to be_truthy }
+    it { expect(type_de_champ.public?).to be_falsey }
+  end
 end
diff --git a/spec/models/type_de_champ_public_spec.rb b/spec/models/type_de_champ_public_spec.rb
deleted file mode 100644
index fc855566f..000000000
--- a/spec/models/type_de_champ_public_spec.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-require 'spec_helper'
-
-describe TypeDeChampPublic do
-  require 'models/type_de_champ_shared_example'
-
-  it_should_behave_like "type_de_champ_spec"
-end
diff --git a/spec/services/champs_service_spec.rb b/spec/services/champs_service_spec.rb
index 108596113..4aa2578e0 100644
--- a/spec/services/champs_service_spec.rb
+++ b/spec/services/champs_service_spec.rb
@@ -1,9 +1,9 @@
 require 'spec_helper'
 
 describe ChampsService do
-  let(:type_de_champ) { create(:type_de_champ_public) }
-  let(:type_de_champ_mandatory) { create(:type_de_champ_public, libelle: 'mandatory', mandatory: true) }
-  let(:type_de_champ_datetime) { create(:type_de_champ_public, type_champ: :datetime) }
+  let(:type_de_champ) { create(:type_de_champ) }
+  let(:type_de_champ_mandatory) { create(:type_de_champ, libelle: 'mandatory', mandatory: true) }
+  let(:type_de_champ_datetime) { create(:type_de_champ, type_champ: :datetime) }
   let!(:champ) { type_de_champ.champ.create(value: 'toto') }
   let!(:champ_mandatory_empty) { type_de_champ_mandatory.champ.create }
   let!(:champ_datetime) { type_de_champ_datetime.champ.create }
diff --git a/spec/services/types_de_champ_service_spec.rb b/spec/services/types_de_champ_service_spec.rb
index dbe847cc0..f08072542 100644
--- a/spec/services/types_de_champ_service_spec.rb
+++ b/spec/services/types_de_champ_service_spec.rb
@@ -9,7 +9,7 @@ describe TypesDeChampService do
     describe 'the drop down list attributes' do
       let(:types_de_champ_attributes) do
         {
-          "0" => {
+          "0": {
             libelle: 'top',
             drop_down_list_attributes: {
               value: "un\r\n       deux\r\n          -- commentaire --\r\n  trois",
@@ -28,29 +28,34 @@ describe TypesDeChampService do
     describe 'reorder the fields' do
       let(:types_de_champ_attributes) do
         {
-          '0' => { 'libelle' => 'a', 'order_place' => '0', 'custom_order_place' => '1' },
-          '1' => { 'libelle' => 'b', 'order_place' => '1', 'custom_order_place' => '2' }
+          '0': { 'libelle': 'a', 'order_place': '0', 'custom_order_place': '1' },
+          '1': { 'libelle': 'b', 'order_place': '1', 'custom_order_place': '2' }
         }
       end
 
       subject { result['types_de_champ_attributes'].to_unsafe_hash }
 
-      it { is_expected.to match({ "0" => { 'libelle' => 'a', 'order_place' => '0' }, "1" => { 'libelle' => 'b', 'order_place' => '1' } }) }
+      it do
+        is_expected.to match({
+          '0': { 'libelle': 'a', 'order_place': '0', 'private': false },
+          '1': { 'libelle': 'b', 'order_place': '1', 'private': false }
+        })
+      end
 
       context 'when the user specifies a position on one element' do
         let(:types_de_champ_attributes) do
           {
-            '0' => { 'libelle' => 'a', 'order_place' => '1', 'custom_order_place' => '1' },
-            '1' => { 'libelle' => 'b', 'order_place' => '10', 'custom_order_place' => '10' },
-            '2' => { 'libelle' => 'c', 'order_place' => '11', 'custom_order_place' => '2' }
+            '0': { 'libelle': 'a', 'order_place': '1', 'custom_order_place': '1' },
+            '1': { 'libelle': 'b', 'order_place': '10', 'custom_order_place': '10' },
+            '2': { 'libelle': 'c', 'order_place': '11', 'custom_order_place': '2' }
           }
         end
 
         it do
           is_expected.to match({
-            '0' => { 'libelle' => 'a', 'order_place' => '0' },
-            '1' => { 'libelle' => 'c', 'order_place' => '1' },
-            '2' => { 'libelle' => 'b', 'order_place' => '2' }
+            '0': { 'libelle': 'a', 'order_place': '0', 'private': false },
+            '1': { 'libelle': 'c', 'order_place': '1', 'private': false },
+            '2': { 'libelle': 'b', 'order_place': '2', 'private': false }
           })
         end
       end
@@ -58,17 +63,17 @@ describe TypesDeChampService do
       context 'when the user puts a champ down' do
         let(:types_de_champ_attributes) do
           {
-            '0' => { 'libelle' => 'a', 'order_place' => '0', 'custom_order_place' => '2' },
-            '1' => { 'libelle' => 'b', 'order_place' => '1', 'custom_order_place' => '2' },
-            '2' => { 'libelle' => 'c', 'order_place' => '2', 'custom_order_place' => '3' }
+            '0': { 'libelle': 'a', 'order_place': '0', 'custom_order_place': '2' },
+            '1': { 'libelle': 'b', 'order_place': '1', 'custom_order_place': '2' },
+            '2': { 'libelle': 'c', 'order_place': '2', 'custom_order_place': '3' }
           }
         end
 
         it do
           is_expected.to match({
-            '0' => { 'libelle' => 'b', 'order_place' => '0' },
-            '1' => { 'libelle' => 'a', 'order_place' => '1' },
-            '2' => { 'libelle' => 'c', 'order_place' => '2' }
+            '0': { 'libelle': 'b', 'order_place': '0', 'private': false },
+            '1': { 'libelle': 'a', 'order_place': '1', 'private': false },
+            '2': { 'libelle': 'c', 'order_place': '2', 'private': false }
           })
         end
       end
@@ -76,19 +81,19 @@ describe TypesDeChampService do
       context 'when the user uses not a number' do
         let(:types_de_champ_attributes) do
           {
-            '0' => { 'libelle' => 'a', 'order_place' => '0', 'custom_order_place' => '1' },
-            '1' => { 'libelle' => 'b', 'order_place' => '1', 'custom_order_place' => '2' },
-            '2' => { 'libelle' => 'c', 'order_place' => '2', 'custom_order_place' => '' },
-            '3' => { 'libelle' => 'd', 'order_place' => '3', 'custom_order_place' => 'a' }
+            '0': { 'libelle': 'a', 'order_place': '0', 'custom_order_place': '1' },
+            '1': { 'libelle': 'b', 'order_place': '1', 'custom_order_place': '2' },
+            '2': { 'libelle': 'c', 'order_place': '2', 'custom_order_place': '' },
+            '3': { 'libelle': 'd', 'order_place': '3', 'custom_order_place': 'a' }
           }
         end
 
         it 'does not change the natural order' do
           is_expected.to match({
-            '0' => { 'libelle' => 'a', 'order_place' => '0' },
-            '1' => { 'libelle' => 'b', 'order_place' => '1' },
-            '2' => { 'libelle' => 'c', 'order_place' => '2' },
-            '3' => { 'libelle' => 'd', 'order_place' => '3' }
+            '0': { 'libelle': 'a', 'order_place': '0', 'private': false },
+            '1': { 'libelle': 'b', 'order_place': '1', 'private': false },
+            '2': { 'libelle': 'c', 'order_place': '2', 'private': false },
+            '3': { 'libelle': 'd', 'order_place': '3', 'private': false }
           })
         end
       end
diff --git a/spec/views/admin/types_de_champ/show.html.haml_spec.rb b/spec/views/admin/types_de_champ/show.html.haml_spec.rb
index 1921dd9f6..566542f23 100644
--- a/spec/views/admin/types_de_champ/show.html.haml_spec.rb
+++ b/spec/views/admin/types_de_champ/show.html.haml_spec.rb
@@ -6,8 +6,8 @@ describe 'admin/types_de_champ/show.html.haml', type: :view do
   describe 'fields sorted' do
     let(:first_libelle) { 'salut la compagnie' }
     let(:last_libelle) { 'je suis bien sur la page' }
-    let!(:type_de_champ_1) { create(:type_de_champ_public, procedure: procedure, order_place: 1, libelle: last_libelle) }
-    let!(:type_de_champ_0) { create(:type_de_champ_public, procedure: procedure, order_place: 0, libelle: first_libelle) }
+    let!(:type_de_champ_1) { create(:type_de_champ, procedure: procedure, order_place: 1, libelle: last_libelle) }
+    let!(:type_de_champ_0) { create(:type_de_champ, procedure: procedure, order_place: 0, libelle: first_libelle) }
     before do
       procedure.reload
       assign(:procedure, procedure)
@@ -32,15 +32,15 @@ describe 'admin/types_de_champ/show.html.haml', type: :view do
       it { expect(subject).not_to have_css('.fa-chevron-up') }
     end
     context 'when there is only one field in database' do
-      let!(:type_de_champ_0) { create(:type_de_champ_public, procedure: procedure, order_place: 0) }
+      let!(:type_de_champ_0) { create(:type_de_champ, procedure: procedure, order_place: 0) }
       it { expect(subject).to have_css('#btn_down_0[style*="visibility: hidden"]') }
       it { expect(subject).to have_css('#btn_up_0[style*="visibility: hidden"]')   }
       it { expect(subject).not_to have_css('#btn_up_1')   }
       it { expect(subject).not_to have_css('#btn_down_1') }
     end
     context 'when there are 2 fields in database' do
-      let!(:type_de_champ_0) { create(:type_de_champ_public, procedure: procedure, order_place: 0) }
-      let!(:type_de_champ_1) { create(:type_de_champ_public, procedure: procedure, order_place: 1) }
+      let!(:type_de_champ_0) { create(:type_de_champ, procedure: procedure, order_place: 0) }
+      let!(:type_de_champ_1) { create(:type_de_champ, procedure: procedure, order_place: 1) }
       it { expect(subject).to have_css('#btn_down_0') }
       it { expect(subject).to have_css('#btn_up_0[style*="visibility: hidden"]') }
       it { expect(subject).to have_css('#btn_up_1') }
diff --git a/spec/views/admin/types_de_champ_private/show.html.haml_spec.rb b/spec/views/admin/types_de_champ_private/show.html.haml_spec.rb
index 36dce5ecc..7e9708199 100644
--- a/spec/views/admin/types_de_champ_private/show.html.haml_spec.rb
+++ b/spec/views/admin/types_de_champ_private/show.html.haml_spec.rb
@@ -6,8 +6,8 @@ describe 'admin/types_de_champ/show.html.haml', type: :view do
   describe 'fields sorted' do
     let(:first_libelle) { 'salut la compagnie' }
     let(:last_libelle) { 'je suis bien sur la page' }
-    let!(:type_de_champ_1) { create(:type_de_champ_private, procedure: procedure, order_place: 1, libelle: last_libelle) }
-    let!(:type_de_champ_0) { create(:type_de_champ_private, procedure: procedure, order_place: 0, libelle: first_libelle) }
+    let!(:type_de_champ_1) { create(:type_de_champ, :private, procedure: procedure, order_place: 1, libelle: last_libelle) }
+    let!(:type_de_champ_0) { create(:type_de_champ, :private, procedure: procedure, order_place: 0, libelle: first_libelle) }
     before do
       procedure.reload
       assign(:procedure, procedure)
@@ -40,15 +40,15 @@ describe 'admin/types_de_champ/show.html.haml', type: :view do
         it { expect(subject).not_to have_css('.fa-chevron-up') }
       end
       context 'when there is only one field in database' do
-        let!(:type_de_champ_0) { create(:type_de_champ_private, procedure: procedure, order_place: 0) }
+        let!(:type_de_champ_0) { create(:type_de_champ, :private, procedure: procedure, order_place: 0) }
         it { expect(subject).to have_css('#btn_down_0[style*="visibility: hidden"]') }
         it { expect(subject).to have_css('#btn_up_0[style*="visibility: hidden"]')   }
         it { expect(subject).not_to have_css('#btn_up_1')   }
         it { expect(subject).not_to have_css('#btn_down_1') }
       end
       context 'when there are 2 fields in database' do
-        let!(:type_de_champ_0) { create(:type_de_champ_private, procedure: procedure, order_place: 0) }
-        let!(:type_de_champ_1) { create(:type_de_champ_private, procedure: procedure, order_place: 1) }
+        let!(:type_de_champ_0) { create(:type_de_champ, :private, procedure: procedure, order_place: 0) }
+        let!(:type_de_champ_1) { create(:type_de_champ, :private, procedure: procedure, order_place: 1) }
         it { expect(subject).to have_css('#btn_down_0') }
         it { expect(subject).to have_css('#btn_up_0[style*="visibility: hidden"]') }
         it { expect(subject).to have_css('#btn_up_1') }
diff --git a/spec/views/users/description/champs/_date.html.haml_spec.rb b/spec/views/users/description/champs/_date.html.haml_spec.rb
index 5e0e797e7..5cb1ed190 100644
--- a/spec/views/users/description/champs/_date.html.haml_spec.rb
+++ b/spec/views/users/description/champs/_date.html.haml_spec.rb
@@ -1,7 +1,7 @@
 require 'spec_helper'
 
 describe 'users/description/champs/date.html.haml', type: :view do
-  let(:type_champ) { create(:type_de_champ_public, type_champ: :date) }
+  let(:type_champ) { create(:type_de_champ, type_champ: :date) }
 
   before do
     render 'users/description/champs/date.html.haml', champ: champ
diff --git a/spec/views/users/description/champs/_dossier_link.html.haml_spec.rb b/spec/views/users/description/champs/_dossier_link.html.haml_spec.rb
index 970ab4a43..2a01477e8 100644
--- a/spec/views/users/description/champs/_dossier_link.html.haml_spec.rb
+++ b/spec/views/users/description/champs/_dossier_link.html.haml_spec.rb
@@ -1,7 +1,7 @@
 require 'spec_helper'
 
 describe 'users/description/champs/dossier_link.html.haml', type: :view do
-  let(:type_champ) { create(:type_de_champ_public, type_champ: :dossier_link) }
+  let(:type_champ) { create(:type_de_champ, type_champ: :dossier_link) }
 
   before do
     render 'users/description/champs/dossier_link.html.haml', champ: champ
diff --git a/spec/views/users/description/champs/_engagement.html.haml_spec.rb b/spec/views/users/description/champs/_engagement.html.haml_spec.rb
index a5ddd2f1d..c35c97662 100644
--- a/spec/views/users/description/champs/_engagement.html.haml_spec.rb
+++ b/spec/views/users/description/champs/_engagement.html.haml_spec.rb
@@ -1,7 +1,7 @@
 require 'spec_helper'
 
 describe 'users/description/champs/engagement.html.haml', type: :view do
-  let(:type_champ) { create(:type_de_champ_public, type_champ: :engagement) }
+  let(:type_champ) { create(:type_de_champ, type_champ: :engagement) }
 
   subject { render 'users/description/champs/engagement.html.haml', champ: champ }
 
diff --git a/spec/views/users/description/champs/_render_list_champs.html.haml_spec.rb b/spec/views/users/description/champs/_render_list_champs.html.haml_spec.rb
index 233114a9b..f790279ab 100644
--- a/spec/views/users/description/champs/_render_list_champs.html.haml_spec.rb
+++ b/spec/views/users/description/champs/_render_list_champs.html.haml_spec.rb
@@ -1,5 +1,5 @@
 describe 'users/description/champs/render_list_champs.html.haml', type: :view do
-  let(:type_champ) { create(:type_de_champ_public, :checkbox) }
+  let(:type_champ) { create(:type_de_champ, :checkbox) }
 
   context "with any champ" do
     let!(:champ) { create(:champ, type_de_champ: type_champ, value: nil) }
@@ -40,7 +40,7 @@ describe 'users/description/champs/render_list_champs.html.haml', type: :view do
   end
 
   context 'with a dossier_link' do
-    let(:type_champ) { create(:type_de_champ_public, type_champ: :dossier_link) }
+    let(:type_champ) { create(:type_de_champ, type_champ: :dossier_link) }
     let!(:champ) { create(:champ, type_de_champ: type_champ, value: nil) }
 
     before do
diff --git a/spec/views/users/description/champs/_yes_no.html.haml_spec.rb b/spec/views/users/description/champs/_yes_no.html.haml_spec.rb
index 9d2af680c..22ece7583 100644
--- a/spec/views/users/description/champs/_yes_no.html.haml_spec.rb
+++ b/spec/views/users/description/champs/_yes_no.html.haml_spec.rb
@@ -1,7 +1,7 @@
 require 'spec_helper'
 
 describe 'users/description/champs/yes_no.html.haml', type: :view do
-  let(:type_champ) { create(:type_de_champ_public, type_champ: :yes_no) }
+  let(:type_champ) { create(:type_de_champ, type_champ: :yes_no) }
 
   before do
     render 'users/description/champs/yes_no.html.haml', champ: champ