diff --git a/app/assets/stylesheets/new_design/flex.scss b/app/assets/stylesheets/new_design/flex.scss
index 0689c004c..a204355e1 100644
--- a/app/assets/stylesheets/new_design/flex.scss
+++ b/app/assets/stylesheets/new_design/flex.scss
@@ -20,4 +20,8 @@
   &.justify-center {
     justify-content: center;
   }
+
+  &.justify-start {
+    justify-content: flex-start;
+  }
 }
diff --git a/app/assets/stylesheets/new_design/gaps.scss b/app/assets/stylesheets/new_design/gaps.scss
new file mode 100644
index 000000000..0d2dc2226
--- /dev/null
+++ b/app/assets/stylesheets/new_design/gaps.scss
@@ -0,0 +1,5 @@
+@import "constants";
+
+.gap-left {
+  margin-left: $default-spacer;
+}
diff --git a/app/controllers/new_gestionnaire/dossiers_controller.rb b/app/controllers/new_gestionnaire/dossiers_controller.rb
index 59809566a..e00b6859a 100644
--- a/app/controllers/new_gestionnaire/dossiers_controller.rb
+++ b/app/controllers/new_gestionnaire/dossiers_controller.rb
@@ -33,6 +33,14 @@ module NewGestionnaire
       @following_accompagnateurs_emails = dossier.followers_gestionnaires.pluck(:email)
       @avis_emails = dossier.avis.includes(:gestionnaire).map(&:email_to_display)
       @invites_emails = dossier.invites.map(&:email)
+      @potential_recipients = procedure.gestionnaires.reject { |g| g == current_gestionnaire }
+    end
+
+    def envoyer_a_accompagnateur
+      recipient = Gestionnaire.find(params[:recipient])
+      GestionnaireMailer.send_dossier(current_gestionnaire, dossier, recipient).deliver_later
+      flash.notice = "Dossier envoyé"
+      redirect_to(personnes_impliquees_dossier_path(procedure, dossier))
     end
 
     def follow
diff --git a/app/mailers/gestionnaire_mailer.rb b/app/mailers/gestionnaire_mailer.rb
index ac8124191..24718a766 100644
--- a/app/mailers/gestionnaire_mailer.rb
+++ b/app/mailers/gestionnaire_mailer.rb
@@ -10,6 +10,14 @@ class GestionnaireMailer < ApplicationMailer
     send_mail gestionnaire.email, overview, 'Vos activités sur TPS'
   end
 
+  def send_dossier(sender, dossier, recipient)
+    @sender = sender
+    @dossier = dossier
+    subject = "#{sender.email} vous a envoyé le dossier nº #{dossier.id}"
+
+    mail(to: recipient.email, subject: subject)
+  end
+
   private
 
   def vars_mailer email, args
diff --git a/app/views/gestionnaire_mailer/send_dossier.text.erb b/app/views/gestionnaire_mailer/send_dossier.text.erb
new file mode 100644
index 000000000..029fb2b4b
--- /dev/null
+++ b/app/views/gestionnaire_mailer/send_dossier.text.erb
@@ -0,0 +1,9 @@
+Bonjour,
+
+<%= @sender.email %> vous a envoyé le dossier nº <%= @dossier.id %>, cliquez sur le lien ci-dessous pour y accéder :
+
+<%= dossier_url(@dossier.procedure, @dossier) %>
+
+Bonne journée,
+
+L'équipe Téléprocédures Simplifiées
diff --git a/app/views/new_gestionnaire/dossiers/_envoyer_dossier_block.html.haml b/app/views/new_gestionnaire/dossiers/_envoyer_dossier_block.html.haml
new file mode 100644
index 000000000..cf5d33eac
--- /dev/null
+++ b/app/views/new_gestionnaire/dossiers/_envoyer_dossier_block.html.haml
@@ -0,0 +1,6 @@
+.tab-title= "Envoyer ce dossier à un autre accompagnateur"
+
+= form_for dossier, url: envoyer_a_accompagnateur_dossier_path(dossier.procedure, dossier), method: :post, html: { class: 'form' } do |f|
+  .flex.justify-start.align-baseline
+    = select_tag(:recipient, options_from_collection_for_select(potential_recipients, :id, :email))
+    = f.submit "Envoyer", class: "button large send gap-left"
diff --git a/app/views/new_gestionnaire/dossiers/personnes_impliquees.html.haml b/app/views/new_gestionnaire/dossiers/personnes_impliquees.html.haml
index 857c99692..571279a48 100644
--- a/app/views/new_gestionnaire/dossiers/personnes_impliquees.html.haml
+++ b/app/views/new_gestionnaire/dossiers/personnes_impliquees.html.haml
@@ -3,6 +3,8 @@
 = render partial: "header", locals: { dossier: @dossier }
 
 .personnes-impliquees.container
+  = render partial: 'new_gestionnaire/dossiers/envoyer_dossier_block', locals: { dossier: @dossier, potential_recipients: @potential_recipients }
+
   = render partial: 'new_gestionnaire/dossiers/personnes_impliquees_block', locals: { emails_collection: @following_accompagnateurs_emails, title: "Accompagnateurs qui suivent le dossier", blank: "Aucun accompagnateur ne suit ce dossier" }
 
   = render partial: 'new_gestionnaire/dossiers/personnes_impliquees_block', locals: { emails_collection: @avis_emails, title: "Personnes à qui un avis a été demandé", blank: "Aucun avis n'a été demandé" }
diff --git a/config/routes.rb b/config/routes.rb
index cfb615098..c29bbe3b7 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -231,6 +231,7 @@ Rails.application.routes.draw do
             post 'passer-en-instruction' => 'dossiers#passer_en_instruction'
             post 'repasser-en-construction' => 'dossiers#repasser_en_construction'
             post 'terminer'
+            post 'envoyer-a-accompagnateur' => 'dossiers#envoyer_a_accompagnateur'
             scope :carte do
               get 'position'
             end
diff --git a/spec/controllers/new_gestionnaire/dossiers_controller_spec.rb b/spec/controllers/new_gestionnaire/dossiers_controller_spec.rb
index ab9a861fa..326812ed9 100644
--- a/spec/controllers/new_gestionnaire/dossiers_controller_spec.rb
+++ b/spec/controllers/new_gestionnaire/dossiers_controller_spec.rb
@@ -4,7 +4,8 @@ describe NewGestionnaire::DossiersController, type: :controller do
   render_views
 
   let(:gestionnaire) { create(:gestionnaire) }
-  let(:procedure) { create(:procedure, :published, gestionnaires: [gestionnaire]) }
+  let(:gestionnaires) { [gestionnaire] }
+  let(:procedure) { create(:procedure, :published, gestionnaires: gestionnaires) }
   let(:dossier) { create(:dossier, :en_construction, procedure: procedure) }
 
   before { sign_in(gestionnaire) }
@@ -30,6 +31,32 @@ describe NewGestionnaire::DossiersController, type: :controller do
     end
   end
 
+  describe '#envoyer_a_accompagnateur' do
+    let(:recipient) { create(:gestionnaire) }
+    let(:gestionnaires) { [gestionnaire, recipient] }
+    let(:mail) { double("mail") }
+
+    before do
+      expect(mail).to receive(:deliver_later)
+
+      expect(GestionnaireMailer)
+        .to receive(:send_dossier)
+        .with(gestionnaire, dossier, recipient)
+        .and_return(mail)
+
+      post(
+        :envoyer_a_accompagnateur,
+        params: {
+          recipient: recipient,
+          procedure_id: procedure.id,
+          dossier_id: dossier.id
+        }
+      )
+    end
+
+    it { expect(response).to redirect_to(personnes_impliquees_dossier_url) }
+  end
+
   describe '#follow' do
     before do
       patch :follow, params: { procedure_id: procedure.id, dossier_id: dossier.id }