diff --git a/app/controllers/new_administrateur/procedures_controller.rb b/app/controllers/new_administrateur/procedures_controller.rb
index 97616ce8c..f08aabc7e 100644
--- a/app/controllers/new_administrateur/procedures_controller.rb
+++ b/app/controllers/new_administrateur/procedures_controller.rb
@@ -251,11 +251,11 @@ module NewAdministrateur
     end
 
     def procedure_params
-      editable_params = [:libelle, :description, :organisation, :direction, :lien_site_web, :cadre_juridique, :deliberation, :notice, :web_hook_url, :declarative_with_state, :euro_flag, :logo, :auto_archive_on, :monavis_embed, :api_entreprise_token]
+      editable_params = [:libelle, :description, :organisation, :direction, :lien_site_web, :cadre_juridique, :deliberation, :notice, :web_hook_url, :declarative_with_state, :logo, :auto_archive_on, :monavis_embed, :api_entreprise_token, :duree_conservation_dossiers_dans_ds]
       permited_params = if @procedure&.locked?
         params.require(:procedure).permit(*editable_params)
       else
-        params.require(:procedure).permit(*editable_params, :duree_conservation_dossiers_dans_ds, :duree_conservation_dossiers_hors_ds, :for_individual, :path)
+        params.require(:procedure).permit(*editable_params, :for_individual, :path)
       end
       if permited_params[:auto_archive_on].present?
         permited_params[:auto_archive_on] = Date.parse(permited_params[:auto_archive_on]) + 1.day
diff --git a/app/helpers/conservation_de_donnees_helper.rb b/app/helpers/conservation_de_donnees_helper.rb
index 1426cdf0f..e3aeeba18 100644
--- a/app/helpers/conservation_de_donnees_helper.rb
+++ b/app/helpers/conservation_de_donnees_helper.rb
@@ -1,6 +1,6 @@
 module ConservationDeDonneesHelper
   def politiques_conservation_de_donnees(procedure)
-    [conservation_dans_ds(procedure), conservation_hors_ds(procedure)].compact
+    [conservation_dans_ds(procedure)].compact
   end
 
   private
@@ -10,10 +10,4 @@ module ConservationDeDonneesHelper
       "Dans #{APPLICATION_NAME} : #{procedure.duree_conservation_dossiers_dans_ds} mois"
     end
   end
-
-  def conservation_hors_ds(procedure)
-    if procedure.duree_conservation_dossiers_hors_ds.present?
-      "Par l’administration : #{procedure.duree_conservation_dossiers_hors_ds} mois"
-    end
-  end
 end
diff --git a/app/models/procedure.rb b/app/models/procedure.rb
index 0bfdc51e5..a4e839346 100644
--- a/app/models/procedure.rb
+++ b/app/models/procedure.rb
@@ -51,6 +51,7 @@
 #
 
 class Procedure < ApplicationRecord
+  self.ignored_columns = [:duree_conservation_dossiers_hors_ds]
   include ProcedureStatsConcern
   include EncryptableConcern
   include FileValidationConcern
@@ -238,7 +239,6 @@ class Procedure < ApplicationRecord
   validate :check_juridique
   validates :path, presence: true, format: { with: /\A[a-z0-9_\-]{3,200}\z/ }, uniqueness: { scope: [:path, :closed_at, :hidden_at, :unpublished_at], case_sensitive: false }
   validates :duree_conservation_dossiers_dans_ds, allow_nil: false, numericality: { only_integer: true, greater_than_or_equal_to: 1, less_than_or_equal_to: MAX_DUREE_CONSERVATION }
-  validates :duree_conservation_dossiers_hors_ds, allow_nil: true, numericality: { only_integer: true, greater_than_or_equal_to: 0 }
   validates_with MonAvisEmbedValidator
 
   FILE_MAX_SIZE = 20.megabytes
diff --git a/spec/controllers/new_administrateur/procedures_controller_spec.rb b/spec/controllers/new_administrateur/procedures_controller_spec.rb
index 2e5e57e1a..bb0827d75 100644
--- a/spec/controllers/new_administrateur/procedures_controller_spec.rb
+++ b/spec/controllers/new_administrateur/procedures_controller_spec.rb
@@ -9,7 +9,6 @@ describe NewAdministrateur::ProceduresController, type: :controller do
   let(:direction) { 'Direction de test' }
   let(:cadre_juridique) { 'cadre juridique' }
   let(:duree_conservation_dossiers_dans_ds) { 3 }
-  let(:duree_conservation_dossiers_hors_ds) { 6 }
   let(:monavis_embed) { nil }
   let(:lien_site_web) { 'http://mon-site.gouv.fr' }
 
@@ -33,7 +32,6 @@ describe NewAdministrateur::ProceduresController, type: :controller do
       direction: direction,
       cadre_juridique: cadre_juridique,
       duree_conservation_dossiers_dans_ds: duree_conservation_dossiers_dans_ds,
-      duree_conservation_dossiers_hors_ds: duree_conservation_dossiers_hors_ds,
       monavis_embed: monavis_embed,
       lien_site_web: lien_site_web
     }
@@ -164,7 +162,6 @@ describe NewAdministrateur::ProceduresController, type: :controller do
           it { expect(subject.direction).to eq(direction) }
           it { expect(subject.administrateurs).to eq([admin]) }
           it { expect(subject.duree_conservation_dossiers_dans_ds).to eq(duree_conservation_dossiers_dans_ds) }
-          it { expect(subject.duree_conservation_dossiers_hors_ds).to eq(duree_conservation_dossiers_hors_ds) }
         end
 
         it { is_expected.to redirect_to(champs_admin_procedure_path(Procedure.last)) }
@@ -234,7 +231,6 @@ describe NewAdministrateur::ProceduresController, type: :controller do
         let(:organisation) { 'plop' }
         let(:direction) { 'plap' }
         let(:duree_conservation_dossiers_dans_ds) { 7 }
-        let(:duree_conservation_dossiers_hors_ds) { 5 }
 
         before { update_procedure }
 
@@ -246,7 +242,6 @@ describe NewAdministrateur::ProceduresController, type: :controller do
           it { expect(subject.organisation).to eq(organisation) }
           it { expect(subject.direction).to eq(direction) }
           it { expect(subject.duree_conservation_dossiers_dans_ds).to eq(duree_conservation_dossiers_dans_ds) }
-          it { expect(subject.duree_conservation_dossiers_hors_ds).to eq(duree_conservation_dossiers_hors_ds) }
         end
 
         it { is_expected.to redirect_to(edit_admin_procedure_path id: procedure.id) }
diff --git a/spec/helpers/conservation_de_donnees_helper_spec.rb b/spec/helpers/conservation_de_donnees_helper_spec.rb
index 662f1ca93..143f2f65b 100644
--- a/spec/helpers/conservation_de_donnees_helper_spec.rb
+++ b/spec/helpers/conservation_de_donnees_helper_spec.rb
@@ -1,30 +1,16 @@
 RSpec.describe ConservationDeDonneesHelper, type: :helper do
-  let(:procedure) { build(:procedure, duree_conservation_dossiers_dans_ds: dans_ds, duree_conservation_dossiers_hors_ds: hors_ds) }
+  let(:procedure) { build(:procedure, duree_conservation_dossiers_dans_ds: dans_ds) }
 
   describe "politiques_conservation_de_donnees" do
     subject { politiques_conservation_de_donnees(procedure) }
 
-    context "when both retention times are set" do
+    context "when retention time is set" do
       let(:dans_ds) { 3 }
       let(:hors_ds) { 6 }
 
-      it { is_expected.to eq(["Dans #{APPLICATION_NAME} : 3 mois", "Par l’administration : 6 mois"]) }
-    end
-
-    context "when only in-app retention time is set" do
-      let(:dans_ds) { 3 }
-      let(:hors_ds) { nil }
-
       it { is_expected.to eq(["Dans #{APPLICATION_NAME} : 3 mois"]) }
     end
 
-    context "when only out of app retention time is set" do
-      let(:dans_ds) { nil }
-      let(:hors_ds) { 6 }
-
-      it { is_expected.to eq(["Par l’administration : 6 mois"]) }
-    end
-
     context "when the retention time is not set" do
       let(:dans_ds) { nil }
       let(:hors_ds) { nil }