diff --git a/app/assets/stylesheets/new_design/_constants.scss b/app/assets/stylesheets/new_design/_constants.scss
index 8429f3f29..fca67e46a 100644
--- a/app/assets/stylesheets/new_design/_constants.scss
+++ b/app/assets/stylesheets/new_design/_constants.scss
@@ -7,3 +7,6 @@ $default-padding: 2 * $default-spacer;
 // layouts
 $two-columns-padding: 60px;
 $two-columns-breakpoint: $page-width + (2 * $two-columns-padding);
+
+// z-order
+$alert-z-index: 100;
diff --git a/app/assets/stylesheets/new_design/forms.scss b/app/assets/stylesheets/new_design/forms.scss
index a5edd446a..04617dbfe 100644
--- a/app/assets/stylesheets/new_design/forms.scss
+++ b/app/assets/stylesheets/new_design/forms.scss
@@ -311,8 +311,9 @@
         margin-left: $default-spacer;
       }
 
-      .button.danger {
-        margin-right: auto;
+      // If there are more than one button, align the "Send" button to the right
+      .button:not(:first-of-type).send {
+        margin-left: auto;
       }
     }
 
@@ -321,8 +322,7 @@
       flex-direction: column-reverse;
       align-items: center;
 
-      .button,
-      .button.danger {
+      .button {
         width: 100%;
         max-width: 350px;
         line-height: 30px;
diff --git a/app/assets/stylesheets/new_design/new_alert.scss b/app/assets/stylesheets/new_design/new_alert.scss
index 37dbe064b..84d8e997e 100644
--- a/app/assets/stylesheets/new_design/new_alert.scss
+++ b/app/assets/stylesheets/new_design/new_alert.scss
@@ -1,4 +1,5 @@
 @import "colors";
+@import "constants";
 
 .alert {
   padding: 15px;
@@ -24,8 +25,10 @@
 .alert-fixed {
   position: fixed;
   left: 50%;
-  margin-left: -100px;
-  width: 200px;
+  transform: translate(-50%);
+  max-width: 700px;
   top: 10px;
   border-radius: 10px;
+  // Ensure fixed flash messages are above `position: absolute` elements (like maps)
+  z-index: $alert-z-index;
 }
diff --git a/app/controllers/champs/carte_controller.rb b/app/controllers/champs/carte_controller.rb
index eb799ea92..5374c5111 100644
--- a/app/controllers/champs/carte_controller.rb
+++ b/app/controllers/champs/carte_controller.rb
@@ -74,5 +74,9 @@ class Champs::CarteController < ApplicationController
     if @champ.persisted?
       @champ.save
     end
+
+  rescue RestClient::ResourceNotFound
+    flash.alert = 'Les données cartographiques sont temporairement indisponibles. Réessayez dans un instant.'
+    response.status = 503
   end
 end
diff --git a/app/controllers/manager/demandes_controller.rb b/app/controllers/manager/demandes_controller.rb
index 932cfd8d6..ffdac506c 100644
--- a/app/controllers/manager/demandes_controller.rb
+++ b/app/controllers/manager/demandes_controller.rb
@@ -17,7 +17,7 @@ module Manager
         flash.notice = "Administrateur créé"
         redirect_to manager_demandes_path
       else
-        flash.now.alert = administrateur.errors.full_messages
+        flash.now.alert = administrateur.errors.full_messages.to_sentence
         @pending_demandes = pending_demandes
         render :index
       end
diff --git a/app/dashboards/procedure_dashboard.rb b/app/dashboards/procedure_dashboard.rb
index b2cd24301..7e2b0df69 100644
--- a/app/dashboards/procedure_dashboard.rb
+++ b/app/dashboards/procedure_dashboard.rb
@@ -18,6 +18,7 @@ class ProcedureDashboard < Administrate::BaseDashboard
     id: Field::Number.with_options(searchable: true),
     libelle: Field::String,
     description: Field::String,
+    lien_site_web: Field::String, # TODO: use Field::Url when administrate-v0.12 will be released
     organisation: Field::String,
     direction: Field::String,
     created_at: Field::DateTime,
@@ -59,6 +60,7 @@ class ProcedureDashboard < Administrate::BaseDashboard
     :administrateur,
     :libelle,
     :description,
+    :lien_site_web,
     :organisation,
     :direction,
     :service,
diff --git a/app/lib/api_carto/api.rb b/app/lib/api_carto/api.rb
index 80cadb1b0..84bcd5d70 100644
--- a/app/lib/api_carto/api.rb
+++ b/app/lib/api_carto/api.rb
@@ -13,10 +13,10 @@ class ApiCarto::API
 
   def self.call(url, geojson)
     params = geojson.to_s
-
     RestClient.post(url, params, content_type: 'application/json')
 
-  rescue RestClient::InternalServerError
+  rescue RestClient::InternalServerError, RestClient::BadGateway, RestClient::GatewayTimeout => e
+    Rails.logger.error "[ApiCarto] Error on #{url}: #{e}"
     raise RestClient::ResourceNotFound
   end
 end
diff --git a/app/models/champs/checkbox_champ.rb b/app/models/champs/checkbox_champ.rb
index dd8540892..b69e20e02 100644
--- a/app/models/champs/checkbox_champ.rb
+++ b/app/models/champs/checkbox_champ.rb
@@ -1,19 +1,9 @@
-class Champs::CheckboxChamp < Champ
-  def search_terms
-    if value == 'on'
-      [libelle]
-    end
-  end
-
-  def to_s
-    value == 'on' ? 'Oui' : 'Non'
+class Champs::CheckboxChamp < Champs::YesNoChamp
+  def true?
+    value == 'on'
   end
 
   def for_export
-    value == 'on' ? 'on' : 'off'
-  end
-
-  def for_api
-    value == 'on' ? 'on' : 'off'
+    true? ? 'on' : 'off'
   end
 end
diff --git a/app/models/champs/yes_no_champ.rb b/app/models/champs/yes_no_champ.rb
index ca7155b03..4f82a406b 100644
--- a/app/models/champs/yes_no_champ.rb
+++ b/app/models/champs/yes_no_champ.rb
@@ -1,6 +1,6 @@
-class Champs::YesNoChamp < Champs::CheckboxChamp
+class Champs::YesNoChamp < Champ
   def search_terms
-    if value == 'true'
+    if true?
       [libelle]
     end
   end
@@ -13,13 +13,13 @@ class Champs::YesNoChamp < Champs::CheckboxChamp
     processed_value
   end
 
-  def for_api
-    processed_value
+  def true?
+    value == 'true'
   end
 
   private
 
   def processed_value
-    value == 'true' ? 'Oui' : 'Non'
+    true? ? 'Oui' : 'Non'
   end
 end
diff --git a/app/views/admin/attestation_templates/show.pdf.prawn b/app/views/admin/attestation_templates/show.pdf.prawn
index 228bdc375..0c3d367b9 100644
--- a/app/views/admin/attestation_templates/show.pdf.prawn
+++ b/app/views/admin/attestation_templates/show.pdf.prawn
@@ -1,8 +1,7 @@
 require 'prawn/measurement_extensions'
 
 prawn_document(margin: [50, 100, 20, 100]) do |pdf|
-  pdf.font_families.update( 'open sans' => { normal: './lib/prawn/fonts/OpenSans-Regular.ttf' })
-  pdf.font 'open sans'
+  pdf.font 'Times-Roman'
 
   grey = '555555'
   black = '333333'
@@ -21,7 +20,7 @@ prawn_document(margin: [50, 100, 20, 100]) do |pdf|
     pdf.pad_top(40) { pdf.text @title, size: 18, character_spacing: -0.2 }
 
     pdf.fill_color grey
-    pdf.pad_top(30) { pdf.text @body, size: 10, character_spacing: -0.2 }
+    pdf.pad_top(30) { pdf.text @body, size: 10, character_spacing: -0.2, align: :justify }
 
     if @signature.present?
       pdf.pad_top(40) do
diff --git a/app/views/admin/procedures/edit.html.haml b/app/views/admin/procedures/edit.html.haml
index 1eb571224..5efaea830 100644
--- a/app/views/admin/procedures/edit.html.haml
+++ b/app/views/admin/procedures/edit.html.haml
@@ -3,7 +3,4 @@
     = form_for @procedure, url: url_for({ controller: 'admin/procedures', action: :update, id: @procedure.id }), multipart: true do |f|
       = render partial: 'informations', locals: { f: f }
       .text-right
-        - if !Flipflop.publish_draft? || @availability.in?(Procedure::PATH_CAN_PUBLISH)
-          = f.button 'Enregistrer', class: 'btn btn-success'
-        - else
-          = f.button 'Enregistrer', class: 'btn btn-success', disabled: true
+        = f.button 'Enregistrer', class: 'btn btn-success'
diff --git a/app/views/champs/carte/show.js.erb b/app/views/champs/carte/show.js.erb
index 45ae01b28..e5c1e7055 100644
--- a/app/views/champs/carte/show.js.erb
+++ b/app/views/champs/carte/show.js.erb
@@ -1,3 +1,5 @@
+<%= render_flash(timeout: 5000, fixed: true) %>
+
 <%= render_to_element("#{@selector} + .geo-areas",
   partial: 'shared/champs/carte/geo_areas',
   locals: { champ: @champ, error: @error }) %>
diff --git a/app/views/new_user/dossiers/index.html.haml b/app/views/new_user/dossiers/index.html.haml
index 347961d81..0c83b7eeb 100644
--- a/app/views/new_user/dossiers/index.html.haml
+++ b/app/views/new_user/dossiers/index.html.haml
@@ -52,7 +52,7 @@
                   = dossier.updated_at.strftime("%d/%m/%Y")
               %td.action-col.delete-col
                 - if dossier.brouillon?
-                  = link_to(ask_deletion_dossier_path(dossier), method: :post, class: 'button danger', data: { disable: true, confirm: "En continuant, vous allez supprimer ce dossier ainsi que les informations qu’il contient. Toute suppression entraine l’annulation de la démarche en cours.\n\nConfirmer la suppression ?" }) do
+                  = link_to(ask_deletion_dossier_path(dossier), method: :post, class: 'button danger', data: { disable: true, confirm: "En continuant, vous allez supprimer ce dossier ainsi que les informations qu’il contient. Toute suppression entraine l’annulation de la démarche en cours.\n\nConfirmer la suppression ?" }) do
                     %span.icon.delete
                     Supprimer
     = paginate(@dossiers)
diff --git a/app/views/root/patron.html.haml b/app/views/root/patron.html.haml
index 35173bda4..048804ceb 100644
--- a/app/views/root/patron.html.haml
+++ b/app/views/root/patron.html.haml
@@ -40,7 +40,7 @@
         %input{ type: "password", value: "12345678" }
         .send-wrapper
           = f.submit 'Enregistrer un brouillon (formnovalidate)', formnovalidate: true, class: 'button send'
-          = f.submit 'Envoyer', class: 'button send'
+          = f.submit 'Envoyer', class: 'button send primary'
 
         %hr
 
diff --git a/app/views/shared/dossiers/_edit.html.haml b/app/views/shared/dossiers/_edit.html.haml
index a0229d625..3d52cd697 100644
--- a/app/views/shared/dossiers/_edit.html.haml
+++ b/app/views/shared/dossiers/_edit.html.haml
@@ -70,13 +70,6 @@
     - if !apercu
       .send-wrapper
         - if dossier.brouillon?
-          - if current_user.owns?(dossier)
-            = link_to ask_deletion_dossier_path(dossier),
-              method: :post,
-              class: 'button danger',
-              data: { disable: true, confirm: "En continuant, vous allez supprimer ce dossier ainsi que les informations qu’il contient. Toute suppression entraine l’annulation de la démarche en cours.\n\nConfirmer la suppression ?" } do
-              Supprimer le brouillon
-
           = f.button 'Enregistrer le brouillon',
             formnovalidate: true,
             name: :save_draft,
diff --git a/app/views/shared/dossiers/editable_champs/_phone.html.haml b/app/views/shared/dossiers/editable_champs/_phone.html.haml
index 00ff6f5c6..5ef3c3dfa 100644
--- a/app/views/shared/dossiers/editable_champs/_phone.html.haml
+++ b/app/views/shared/dossiers/editable_champs/_phone.html.haml
@@ -1,3 +1,23 @@
+-# Allowed formats:
+-# 0123456789
+-# 01 23 45 67 89
+-# 01.23.45.67.89
+-# 0123 45.67.89
+-# 0033 123-456-789
+-# 0035 123-456-789
+-# 0033 123-456-789
+-# 0033(0)123456789
+-# +33-1.23.45.67.89
+-# +33 - 123 456 789
+-# +33(0) 123 456 789
+-# +33 (0)123 45 67 89
+-# +33 (0)1 2345-6789
+-# +33(0) - 123456789
+-# +1(0) - 123456789
+-# +2 123456789
+-# 012345678
+-# 01234567890
 = form.phone_field :value,
   placeholder: champ.libelle,
-  required: champ.mandatory?
+  required: champ.mandatory?,
+  pattern: "([\\+\\d\\(][\\(\\)\\s\\.\\-\\d]{4,}\\d)"
diff --git a/spec/controllers/champs/carte_controller_spec.rb b/spec/controllers/champs/carte_controller_spec.rb
index a530593eb..374574e09 100644
--- a/spec/controllers/champs/carte_controller_spec.rb
+++ b/spec/controllers/champs/carte_controller_spec.rb
@@ -25,43 +25,65 @@ describe Champs::CarteController, type: :controller do
   describe 'POST #show' do
     render_views
 
-    before { sign_in user }
-    before do
-      allow_any_instance_of(ApiCarto::QuartiersPrioritairesAdapter)
-        .to receive(:results)
-        .and_return([{ code: "QPCODE1234", geometry: { type: "MultiPolygon", coordinates: [[[[2.38715792094576, 48.8723062632126], [2.38724851642619, 48.8721392348061]]]] } }])
+    context 'when the API is available' do
+      render_views
 
-      post :show, params: params, format: 'js'
+      before do
+        sign_in user
+
+        allow_any_instance_of(ApiCarto::QuartiersPrioritairesAdapter)
+          .to receive(:results)
+          .and_return([{ code: "QPCODE1234", geometry: { type: "MultiPolygon", coordinates: [[[[2.38715792094576, 48.8723062632126], [2.38724851642619, 48.8721392348061]]]] } }])
+
+        post :show, params: params, format: 'js'
+      end
+
+      context 'when coordinates are empty' do
+        let(:value) { '[]' }
+
+        it {
+          expect(assigns(:error)).to eq(nil)
+          expect(champ.reload.value).to eq(nil)
+          expect(champ.reload.geo_areas).to eq([])
+          expect(response.body).to include("DS.drawMapData(\".carte-1\", {\"position\":{\"lon\":\"2.428462\",\"lat\":\"46.538192\",\"zoom\":\"13\"},\"selection\":null,\"quartiersPrioritaires\":[],\"cadastres\":[],\"parcellesAgricoles\":[]});")
+        }
+      end
+
+      context 'when coordinates are informed' do
+        let(:value) { [[{ "lat": 48.87442541960633, "lng": 2.3859214782714844 }, { "lat": 48.87273183590832, "lng": 2.3850631713867183 }, { "lat": 48.87081237174292, "lng": 2.3809432983398438 }, { "lat": 48.8712640169951, "lng": 2.377510070800781 }, { "lat": 48.87510283703279, "lng": 2.3778533935546875 }, { "lat": 48.87544154230615, "lng": 2.382831573486328 }, { "lat": 48.87442541960633, "lng": 2.3859214782714844 }]].to_json }
+
+        it { expect(response.body).not_to be_nil }
+        it { expect(response.body).to include('MultiPolygon') }
+        it { expect(response.body).to include('[2.38715792094576,48.8723062632126]') }
+      end
+
+      context 'when error' do
+        let(:geojson) { [[{ "lat": 48.87442541960633, "lng": 2.3859214782714844 }, { "lat": 48.87273183590832, "lng": 2.3850631713867183 }, { "lat": 48.87081237174292, "lng": 2.3809432983398438 }, { "lat": 48.8712640169951, "lng": 2.377510070800781 }, { "lat": 48.87510283703279, "lng": 2.3778533935546875 }, { "lat": 48.87544154230615, "lng": 2.382831573486328 }, { "lat": 48.87442541960633, "lng": 2.3859214782714844 }]] }
+        let(:value) { '' }
+
+        it {
+          expect(assigns(:error)).to eq(true)
+          expect(champ.reload.value).to eq(nil)
+          expect(champ.reload.geo_areas).to eq([])
+        }
+      end
     end
 
-    context 'when coordinates are empty' do
-      let(:value) { '[]' }
+    context 'when the API is unavailable' do
+      before do
+        sign_in user
 
-      it {
-        expect(assigns(:error)).to eq(nil)
-        expect(champ.reload.value).to eq(nil)
-        expect(champ.reload.geo_areas).to eq([])
-        expect(response.body).to include("DS.drawMapData(\".carte-1\", {\"position\":{\"lon\":\"2.428462\",\"lat\":\"46.538192\",\"zoom\":\"13\"},\"selection\":null,\"quartiersPrioritaires\":[],\"cadastres\":[],\"parcellesAgricoles\":[]});")
-      }
-    end
+        allow_any_instance_of(ApiCarto::QuartiersPrioritairesAdapter)
+          .to receive(:results)
+          .and_raise(RestClient::ResourceNotFound)
+
+        post :show, params: params, format: 'js'
+      end
 
-    context 'when coordinates are informed' do
       let(:value) { [[{ "lat": 48.87442541960633, "lng": 2.3859214782714844 }, { "lat": 48.87273183590832, "lng": 2.3850631713867183 }, { "lat": 48.87081237174292, "lng": 2.3809432983398438 }, { "lat": 48.8712640169951, "lng": 2.377510070800781 }, { "lat": 48.87510283703279, "lng": 2.3778533935546875 }, { "lat": 48.87544154230615, "lng": 2.382831573486328 }, { "lat": 48.87442541960633, "lng": 2.3859214782714844 }]].to_json }
 
-      it { expect(response.body).not_to be_nil }
-      it { expect(response.body).to include('MultiPolygon') }
-      it { expect(response.body).to include('[2.38715792094576,48.8723062632126]') }
-    end
-
-    context 'when error' do
-      let(:geojson) { [[{ "lat": 48.87442541960633, "lng": 2.3859214782714844 }, { "lat": 48.87273183590832, "lng": 2.3850631713867183 }, { "lat": 48.87081237174292, "lng": 2.3809432983398438 }, { "lat": 48.8712640169951, "lng": 2.377510070800781 }, { "lat": 48.87510283703279, "lng": 2.3778533935546875 }, { "lat": 48.87544154230615, "lng": 2.382831573486328 }, { "lat": 48.87442541960633, "lng": 2.3859214782714844 }]] }
-      let(:value) { '' }
-
-      it {
-        expect(assigns(:error)).to eq(true)
-        expect(champ.reload.value).to eq(nil)
-        expect(champ.reload.geo_areas).to eq([])
-      }
+      it { expect(response.status).to eq 503 }
+      it { expect(response.body).to include('Les données cartographiques sont temporairement indisponibles') }
     end
   end
 end
diff --git a/spec/features/new_user/brouillon_spec.rb b/spec/features/new_user/brouillon_spec.rb
index 4cc1142e2..660d084a8 100644
--- a/spec/features/new_user/brouillon_spec.rb
+++ b/spec/features/new_user/brouillon_spec.rb
@@ -112,20 +112,6 @@ feature 'The user' do
     expect(page).to have_current_path(merci_dossier_path(user_dossier))
   end
 
-  scenario 'delete a draft', js: true do
-    log_in(user.email, password, simple_procedure)
-    fill_individual
-
-    page.accept_alert('Confirmer la suppression ?') do
-      click_on 'Supprimer le brouillon'
-    end
-
-    expect(page).to have_current_path(dossiers_path)
-    expect(page).to have_text('Votre dossier a bien été supprimé')
-    expect(page).not_to have_text(user_dossier.procedure.libelle)
-    expect(user_dossier.reload.hidden_at).to be_present
-  end
-
   private
 
   def log_in(email, password, procedure)
diff --git a/spec/features/new_user/list_dossiers_spec.rb b/spec/features/new_user/list_dossiers_spec.rb
index 3e36e97d8..f47133bac 100644
--- a/spec/features/new_user/list_dossiers_spec.rb
+++ b/spec/features/new_user/list_dossiers_spec.rb
@@ -49,13 +49,13 @@ describe 'user access to the list of his dossier' do
     expect(page).not_to have_link(nil, href: ask_deletion_dossier_path(dossier1))
   end
 
-  context 'when user clicks on delete brouillon list', js: true do
-    before do
-      find(:xpath, "//a[@href='#{ask_deletion_dossier_path(dossier_brouillon)}']").click
-      page.driver.browser.switch_to.alert.accept
-    end
+  context 'when user clicks on delete brouillon', js: true do
     scenario 'dossier is deleted' do
-      expect(page).not_to have_link("Supprimer", href: dossier_brouillon.procedure.libelle)
+      page.accept_alert('Confirmer la suppression ?') do
+        find(:xpath, "//a[@href='#{ask_deletion_dossier_path(dossier_brouillon)}']").click
+      end
+
+      expect(page).to have_content('Votre dossier a bien été supprimé.')
     end
   end
 
diff --git a/spec/serializers/champ_serializer_spec.rb b/spec/serializers/champ_serializer_spec.rb
index 7e82150b2..d88916685 100644
--- a/spec/serializers/champ_serializer_spec.rb
+++ b/spec/serializers/champ_serializer_spec.rb
@@ -196,5 +196,65 @@ describe ChampSerializer do
         expect(subject[:entreprise]).to include(capital_social: etablissement.entreprise_capital_social)
       }
     end
+
+    context 'when type champ yes_no' do
+      context 'true' do
+        let(:champ) { create(:champ_yes_no, value: 'true') }
+
+        it { is_expected.to include(value: 'true') }
+      end
+
+      context 'false' do
+        let(:champ) { create(:champ_yes_no, value: 'false') }
+
+        it { is_expected.to include(value: 'false') }
+      end
+
+      context 'nil' do
+        let(:champ) { create(:champ_yes_no, value: nil) }
+
+        it { is_expected.to include(value: nil) }
+      end
+    end
+
+    context 'when type champ checkbox' do
+      context 'on' do
+        let(:champ) { create(:champ_checkbox, value: 'on') }
+
+        it { is_expected.to include(value: 'on') }
+      end
+
+      context 'off' do
+        let(:champ) { create(:champ_checkbox, value: 'off') }
+
+        it { is_expected.to include(value: 'off') }
+      end
+
+      context 'nil' do
+        let(:champ) { create(:champ_checkbox, value: nil) }
+
+        it { is_expected.to include(value: nil) }
+      end
+    end
+
+    context 'when type champ engagement' do
+      context 'on' do
+        let(:champ) { create(:champ_engagement, value: 'on') }
+
+        it { is_expected.to include(value: 'on') }
+      end
+
+      context 'off' do
+        let(:champ) { create(:champ_engagement, value: 'off') }
+
+        it { is_expected.to include(value: 'off') }
+      end
+
+      context 'nil' do
+        let(:champ) { create(:champ_engagement, value: nil) }
+
+        it { is_expected.to include(value: nil) }
+      end
+    end
   end
 end