diff --git a/.circleci/config.yml b/.circleci/config.yml
index 74fcb9fd5..9c37a2d7c 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -12,11 +12,11 @@ defaults: &defaults
 
 bundle_restore_cache: &bundle_restore_cache
   restore_cache:
-    key: bundle-install-v7-{{ arch }}-{{ checksum "Gemfile.lock" }}
+    key: bundle-install-v8-{{ arch }}-{{ checksum "Gemfile.lock" }}
 
 bundle_save_cache: &bundle_save_cache
   save_cache:
-    key: bundle-install-v7-{{ arch }}-{{ checksum "Gemfile.lock" }}
+    key: bundle-install-v8-{{ arch }}-{{ checksum "Gemfile.lock" }}
     paths:
       - ~/vendor/bundle
 
diff --git a/Gemfile.lock b/Gemfile.lock
index d7365fd8a..6497187df 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -30,27 +30,27 @@ GEM
   remote: https://rubygems.org/
   specs:
     CFPropertyList (2.3.6)
-    actioncable (5.1.4)
-      actionpack (= 5.1.4)
-      nio4r (~> 2.0)
+    actioncable (5.0.6)
+      actionpack (= 5.0.6)
+      nio4r (>= 1.2, < 3.0)
       websocket-driver (~> 0.6.1)
-    actionmailer (5.1.4)
-      actionpack (= 5.1.4)
-      actionview (= 5.1.4)
-      activejob (= 5.1.4)
+    actionmailer (5.0.6)
+      actionpack (= 5.0.6)
+      actionview (= 5.0.6)
+      activejob (= 5.0.6)
       mail (~> 2.5, >= 2.5.4)
       rails-dom-testing (~> 2.0)
-    actionpack (5.1.4)
-      actionview (= 5.1.4)
-      activesupport (= 5.1.4)
+    actionpack (5.0.6)
+      actionview (= 5.0.6)
+      activesupport (= 5.0.6)
       rack (~> 2.0)
-      rack-test (>= 0.6.3)
+      rack-test (~> 0.6.3)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    actionview (5.1.4)
-      activesupport (= 5.1.4)
+    actionview (5.0.6)
+      activesupport (= 5.0.6)
       builder (~> 3.1)
-      erubi (~> 1.4)
+      erubis (~> 2.7.0)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.3)
     active_model_serializers (0.10.7)
@@ -58,43 +58,44 @@ GEM
       activemodel (>= 4.1, < 6)
       case_transform (>= 0.2)
       jsonapi-renderer (>= 0.1.1.beta1, < 0.3)
-    activejob (5.1.4)
-      activesupport (= 5.1.4)
+    activejob (5.0.6)
+      activesupport (= 5.0.6)
       globalid (>= 0.3.6)
-    activemodel (5.1.4)
-      activesupport (= 5.1.4)
+    activemodel (5.0.6)
+      activesupport (= 5.0.6)
     activemodel-serializers-xml (1.0.2)
       activemodel (> 5.x)
       activesupport (> 5.x)
       builder (~> 3.1)
-    activerecord (5.1.4)
-      activemodel (= 5.1.4)
-      activesupport (= 5.1.4)
-      arel (~> 8.0)
-    activesupport (5.1.4)
+    activerecord (5.0.6)
+      activemodel (= 5.0.6)
+      activesupport (= 5.0.6)
+      arel (~> 7.0)
+    activesupport (5.0.6)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (~> 0.7)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
     addressable (2.5.2)
       public_suffix (>= 2.0.2, < 4.0)
-    administrate (0.8.1)
-      actionpack (>= 4.2, < 5.2)
-      actionview (>= 4.2, < 5.2)
-      activerecord (>= 4.2, < 5.2)
-      autoprefixer-rails (>= 6.0)
+    administrate (0.4.0)
+      autoprefixer-rails (~> 6.0)
+      bourbon (~> 4.2)
       datetime_picker_rails (~> 0.0.7)
-      jquery-rails (>= 4.0)
-      kaminari (>= 1.0)
+      jquery-rails (~> 4.0)
+      kaminari (~> 0.16)
       momentjs-rails (~> 2.8)
+      neat (~> 1.1)
+      normalize-rails (~> 3.0)
+      rails (>= 4.2, < 5.1)
       sass-rails (~> 5.0)
       selectize-rails (~> 0.6)
     apipie-rails (0.5.6)
       rails (>= 4.1)
-    arel (8.0.0)
+    arel (7.1.4)
     ast (2.3.0)
     attr_required (1.0.1)
-    autoprefixer-rails (7.2.5)
+    autoprefixer-rails (6.7.7.2)
       execjs
     axlsx (2.0.1)
       htmlentities (~> 4.3.1)
@@ -108,6 +109,9 @@ GEM
       sass (>= 3.3.4)
     bootstrap-wysihtml5-rails (0.3.3.8)
       railties (>= 3.0)
+    bourbon (4.3.4)
+      sass (~> 3.4)
+      thor (~> 0.19)
     brakeman (4.1.1)
     browser (2.5.2)
     builder (3.2.3)
@@ -134,7 +138,7 @@ GEM
     chartkick (2.2.5)
     childprocess (0.8.0)
       ffi (~> 1.0, >= 1.0.11)
-    chunky_png (1.3.10)
+    chunky_png (1.3.8)
     clamav-client (3.1.0)
     coderay (1.1.2)
     coffee-rails (4.2.2)
@@ -167,7 +171,7 @@ GEM
       activerecord (> 3.0.0)
       delayed_job (> 2.0.3)
       sinatra (>= 1.4.4)
-    devise (4.4.0)
+    devise (4.4.1)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
       railties (>= 4.1.0, < 5.2)
@@ -189,7 +193,6 @@ GEM
     em-websocket (0.5.1)
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0.6.0)
-    erubi (1.7.0)
     erubis (2.7.0)
     eventmachine (1.2.1)
     excon (0.60.0)
@@ -399,7 +402,7 @@ GEM
       domain_name (~> 0.5)
     http_parser.rb (0.6.0)
     httpclient (2.8.3)
-    i18n (0.9.3)
+    i18n (0.9.1)
       concurrent-ruby (~> 1.0)
     inflecto (0.0.2)
     ipaddress (0.8.3)
@@ -415,18 +418,9 @@ GEM
       url_safe_base64
     jsonapi-renderer (0.2.0)
     jwt (1.5.6)
-    kaminari (1.1.1)
-      activesupport (>= 4.1.0)
-      kaminari-actionview (= 1.1.1)
-      kaminari-activerecord (= 1.1.1)
-      kaminari-core (= 1.1.1)
-    kaminari-actionview (1.1.1)
-      actionview
-      kaminari-core (= 1.1.1)
-    kaminari-activerecord (1.1.1)
-      activerecord
-      kaminari-core (= 1.1.1)
-    kaminari-core (1.1.1)
+    kaminari (0.17.0)
+      actionpack (>= 3.0.0)
+      activesupport (>= 3.0.0)
     kgio (2.11.1)
     launchy (2.4.3)
       addressable (~> 2.3)
@@ -462,18 +456,22 @@ GEM
     mimemagic (0.3.2)
     mini_mime (1.0.0)
     mini_portile2 (2.3.0)
-    minitest (5.11.1)
+    minitest (5.11.3)
     momentjs-rails (2.17.1)
       railties (>= 3.1)
     multi_json (1.13.1)
     multi_xml (0.6.0)
     multipart-post (2.0.0)
     mustermann (1.0.1)
+    neat (1.9.0)
+      sass (>= 3.3)
+      thor (~> 0.19)
     nenv (0.3.0)
     netrc (0.11.0)
     nio4r (2.2.0)
-    nokogiri (1.8.1)
+    nokogiri (1.8.2)
       mini_portile2 (~> 2.3.0)
+    normalize-rails (3.0.3)
     notiffany (0.1.1)
       nenv (~> 0.1)
       shellany (~> 0.0)
@@ -539,19 +537,19 @@ GEM
       rack (>= 1.1)
     rack-protection (2.0.0)
       rack
-    rack-test (0.8.2)
-      rack (>= 1.0, < 3)
-    rails (5.1.4)
-      actioncable (= 5.1.4)
-      actionmailer (= 5.1.4)
-      actionpack (= 5.1.4)
-      actionview (= 5.1.4)
-      activejob (= 5.1.4)
-      activemodel (= 5.1.4)
-      activerecord (= 5.1.4)
-      activesupport (= 5.1.4)
+    rack-test (0.6.3)
+      rack (>= 1.0)
+    rails (5.0.6)
+      actioncable (= 5.0.6)
+      actionmailer (= 5.0.6)
+      actionpack (= 5.0.6)
+      actionview (= 5.0.6)
+      activejob (= 5.0.6)
+      activemodel (= 5.0.6)
+      activerecord (= 5.0.6)
+      activesupport (= 5.0.6)
       bundler (>= 1.3.0)
-      railties (= 5.1.4)
+      railties (= 5.0.6)
       sprockets-rails (>= 2.0.0)
     rails-controller-testing (1.0.2)
       actionpack (~> 5.x, >= 5.0.1)
@@ -562,9 +560,9 @@ GEM
       nokogiri (>= 1.6)
     rails-html-sanitizer (1.0.3)
       loofah (~> 2.0)
-    railties (5.1.4)
-      actionpack (= 5.1.4)
-      activesupport (= 5.1.4)
+    railties (5.0.6)
+      actionpack (= 5.0.6)
+      activesupport (= 5.0.6)
       method_source
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
@@ -713,7 +711,7 @@ GEM
     turbolinks-source (5.1.0)
     tzinfo (1.2.4)
       thread_safe (~> 0.1)
-    uglifier (4.1.4)
+    uglifier (4.1.3)
       execjs (>= 0.3.0, < 3)
     unf (0.1.4)
       unf_ext
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 }