diff --git a/app/components/main_navigation/instructeur_expert_navigation_component.rb b/app/components/main_navigation/instructeur_expert_navigation_component.rb
new file mode 100644
index 000000000..8e8cddd41
--- /dev/null
+++ b/app/components/main_navigation/instructeur_expert_navigation_component.rb
@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+class MainNavigation::InstructeurExpertNavigationComponent < ApplicationComponent
+  def instructeur?
+    helpers.instructeur_signed_in?
+  end
+
+  def expert?
+    helpers.expert_signed_in?
+  end
+
+  def aria_current_for(page)
+    { current: page == current_page ? :page : nil }
+  end
+
+  private
+
+  def current_page
+    case controller_name
+    when 'avis'
+      :avis
+    when 'procedures', 'dossiers'
+      :procedure
+    end
+  end
+end
diff --git a/app/components/main_navigation/instructeur_expert_navigation_component/instructeur_expert_navigation_component.html.haml b/app/components/main_navigation/instructeur_expert_navigation_component/instructeur_expert_navigation_component.html.haml
new file mode 100644
index 000000000..411163861
--- /dev/null
+++ b/app/components/main_navigation/instructeur_expert_navigation_component/instructeur_expert_navigation_component.html.haml
@@ -0,0 +1,12 @@
+%nav#header-navigation.fr-nav{ role: :navigation, "aria-label" => t('main_menu', scope: [:layouts, :header]) }
+  %ul.fr-nav__list
+    - if instructeur?
+      %li.fr-nav__item
+        = link_to Procedure.model_name.human(count: 10), instructeur_procedures_path, class: 'fr-nav__link', aria: aria_current_for(:procedure)
+
+    - if expert?
+      %li.fr-nav__item
+        = link_to expert_all_avis_path, class: 'fr-nav__link', aria: aria_current_for(:avis) do
+          = Avis.model_name.human(count: 10)
+          - if helpers.current_expert.avis_summary[:unanswered] > 0
+            %span.badge.warning= helpers.current_expert.avis_summary[:unanswered]
diff --git a/app/views/administrateurs/_main_navigation.html.haml b/app/views/administrateurs/_main_navigation.html.haml
new file mode 100644
index 000000000..04693d235
--- /dev/null
+++ b/app/views/administrateurs/_main_navigation.html.haml
@@ -0,0 +1,5 @@
+%nav#header-navigation.fr-nav{ role: 'navigation', 'aria-label': 'Menu principal administrateur' }
+  %ul.fr-nav__list
+    %li.fr-nav__item= link_to 'Mes démarches', admin_procedures_path, class:'fr-nav__link', 'aria-current': current_page?(controller: 'administrateurs/procedures', action: :index) ? 'true' : nil
+    - if Rails.application.config.ds_zonage_enabled
+      %li.fr-nav__item= link_to 'Toutes les démarches', all_admin_procedures_path(zone_ids: current_administrateur.zones), class:'fr-nav__link', 'aria-current': current_page?(all_admin_procedures_path) ? 'page' : nil
diff --git a/app/views/administrateurs/procedures/_main_menu.html.haml b/app/views/administrateurs/procedures/_main_menu.html.haml
deleted file mode 100644
index 89f3de634..000000000
--- a/app/views/administrateurs/procedures/_main_menu.html.haml
+++ /dev/null
@@ -1,6 +0,0 @@
-.fr-container
-  %nav#header-navigation.fr-nav{ role: 'navigation', 'aria-label': 'Menu principal administrateur' }
-    %ul.fr-nav__list
-      %li.fr-nav__item= link_to 'Mes démarches', admin_procedures_path, class:'fr-nav__link', 'aria-current': current_page?(controller: 'procedures', action: :index) ? 'true' : nil
-      - if Rails.application.config.ds_zonage_enabled
-        %li.fr-nav__item= link_to 'Toutes les démarches', all_admin_procedures_path(zone_ids: current_administrateur.zones), class:'fr-nav__link', 'aria-current': current_page?(all_admin_procedures_path) ? 'page' : nil
diff --git a/app/views/administrateurs/procedures/index.html.haml b/app/views/administrateurs/procedures/index.html.haml
index 8c17eddd0..60d2441da 100644
--- a/app/views/administrateurs/procedures/index.html.haml
+++ b/app/views/administrateurs/procedures/index.html.haml
@@ -1,5 +1,3 @@
-= render 'main_menu'
-
 .sub-header
   .procedure-admin-listing-container
     = link_to "Nouvelle Démarche", new_from_existing_admin_procedures_path, id: 'new-procedure', class: 'fr-btn'
diff --git a/app/views/layouts/_header.haml b/app/views/layouts/_header.haml
index 22a4e47e3..07425860d 100644
--- a/app/views/layouts/_header.haml
+++ b/app/views/layouts/_header.haml
@@ -3,6 +3,7 @@
 - dossier = controller.try(:dossier_for_help)
 - procedure = controller.try(:procedure_for_help)
 - is_instructeur_context = nav_bar_profile == :instructeur && instructeur_signed_in?
+- is_administrateur_context = nav_bar_profile == :administrateur && administrateur_signed_in?
 - is_expert_context = nav_bar_profile == :expert && expert_signed_in?
 - is_user_context = nav_bar_profile == :user
 - is_search_enabled = [params[:controller] == 'recherche', is_instructeur_context, is_expert_context, is_user_context && current_user.dossiers.count].any?
@@ -20,7 +21,7 @@
             .fr-header__navbar
               - if is_search_enabled
                 %button.fr-btn--search.fr-btn{ "aria-controls" => "search-modal", "data-fr-opened" => "false", :title => t('views.users.dossiers.search.search_file') }= t('views.users.dossiers.search.search_file')
-              %button.fr-btn--menu.fr-btn{ "aria-controls" => "burger-menu", "aria-haspopup" => "menu", "data-fr-opened" => "false", :title => "Menu" } Menu
+              %button#navbar-burger-button.fr-btn--menu.fr-btn{ "aria-controls" => "modal-header__menu", "aria-haspopup" => "menu", "data-fr-opened" => "false", title: "Menu" } Menu
           .fr-header__service
             - root_profile_link, root_profile_libelle = root_path_info_for_profile(nav_bar_profile)
 
@@ -68,39 +69,20 @@
           - if is_expert_context
             = render partial: 'layouts/search_dossiers_form'
 
-  - has_header = [is_instructeur_context, is_expert_context, is_user_context]
-  #burger-menu.fr-header__menu.fr-modal
+  #modal-header__menu.fr-header__menu.fr-modal{ "aria-labelledby": "navbar-burger-button" }
     .fr-container
-      %button#burger_button.fr-btn--close.fr-btn{ "aria-controls" => "burger-menu", :title => t('close_modal', scope: [:layouts, :header]) }= t('close_modal', scope: [:layouts, :header])
+      %button.fr-btn--close.fr-btn{ "aria-controls" => "modal-header__menu", title: t('close_modal', scope: [:layouts, :header]) }= t('close_modal', scope: [:layouts, :header])
       .fr-header__menu-links
-      %nav#navigation-478.fr-nav{ "aria-label" => t('main_menu', scope: [:layouts, :header]) , :role => "navigation" }
-        %ul.fr-nav__list
-          -# Questionner UX pour un back JS
-          - if params[:controller] == 'users/commencer'
-            %li.fr-nav__item
-              = link_to t('back', scope: [:layouts, :header]), url_for(:back), title: t('back_title', scope: [:layouts, :header]), class: 'fr-nav__link'
+        -# populated by dsfr js
 
-          - if is_instructeur_context
-            - if current_instructeur.procedures.any?
-              - current_url = request.path_info
-              %li.fr-nav__item
-                = active_link_to t('utils.procedure'), instructeur_procedures_path, active: ['dossiers','procedures'].include?(controller_name), class: 'fr-nav__link', aria: { current: current_url == instructeur_procedures_path ? 'page' : true }
-            - if current_instructeur.user.expert && current_expert.avis_summary[:total] > 0
-              = render partial: 'layouts/header/avis_tab', locals: { current_expert: current_expert }
+      - if content_for?(:main_navigation)
+        = yield(:main_navigation)
+      - elsif is_administrateur_context
+        = render 'administrateurs/main_navigation'
+      - elsif is_instructeur_context || is_expert_context
+        = render MainNavigation::InstructeurExpertNavigationComponent.new
+      - elsif is_user_context
+        = render 'users/main_navigation'
 
-          - if is_expert_context
-            - if current_expert.user.instructeur && current_instructeur.procedures.any?
-              %li.fr-nav__item= active_link_to t('utils.procedure'), instructeur_procedures_path, active: ['dossiers','procedures'].include?(controller_name), class: 'fr-nav__link', aria: { current: true }
-            - if current_expert.avis_summary[:total] > 0
-              = render partial: 'layouts/header/avis_tab', locals: { current_expert: current_expert }
-
-          - if is_user_context
-            %li.fr-nav__item= active_link_to t('.files'), dossiers_path, active: :inclusive, class: 'fr-nav__link', aria: { current: true }
-            - if current_user.expert && current_expert.avis_summary[:total] > 0
-              = render partial: 'layouts/header/avis_tab', locals: { current_expert: current_expert }
-
-  - if content_for?(:navigation_principale)
-    .fr-container
-      = yield(:navigation_principale)
 
   = yield(:notice_info)
diff --git a/app/views/layouts/all.html.haml b/app/views/layouts/all.html.haml
index 065cf64eb..bb581b79e 100644
--- a/app/views/layouts/all.html.haml
+++ b/app/views/layouts/all.html.haml
@@ -1,5 +1,7 @@
+- content_for(:main_navigation) do
+  = render 'administrateurs/main_navigation'
+
 - content_for :content do
-  = render 'main_menu'
   .fr-container
     %h1.fr-my-4w Toutes les démarches
 
diff --git a/app/views/layouts/header/_avis_tab.html.haml b/app/views/layouts/header/_avis_tab.html.haml
deleted file mode 100644
index 91031da4d..000000000
--- a/app/views/layouts/header/_avis_tab.html.haml
+++ /dev/null
@@ -1,5 +0,0 @@
-%li.fr-nav__item
-  = active_link_to expert_all_avis_path, active: controller_name == 'avis', class: 'fr-nav__link' do
-    Avis
-    - if current_expert.avis_summary[:unanswered] > 0
-      %span.badge.warning= current_expert.avis_summary[:unanswered]
diff --git a/app/views/super_admins/release_notes/_main_navigation.html.haml b/app/views/super_admins/release_notes/_main_navigation.html.haml
index 2959495b0..8207cee48 100644
--- a/app/views/super_admins/release_notes/_main_navigation.html.haml
+++ b/app/views/super_admins/release_notes/_main_navigation.html.haml
@@ -1,17 +1,16 @@
-- content_for(:navigation_principale) do
-  .fr-container
-    %nav.fr-nav#header-navigation{ role: "navigation", aria: { label: 'Menu principal annonces' } }
-      %ul.fr-nav__list
+- content_for(:main_navigation) do
+  %nav.fr-nav#header-navigation{ role: "navigation", aria: { label: 'Menu principal annonces' } }
+    %ul.fr-nav__list
+      %li.fr-nav__item
+        = link_to "Toutes les annonces", super_admins_release_notes_path, class: "fr-nav__link", target: "_self", aria: { current: action == :index ? "page" : nil }
+
+      %li.fr-nav__item
+        = link_to("Nouvelle annonce", new_super_admins_release_note_path(date: @release_note&.released_on), class: "fr-nav__link", target: "_self", aria: { current: action == :new ? "page" : nil })
+
+      - if action == :edit
         %li.fr-nav__item
-          = link_to "Toutes les annonces", super_admins_release_notes_path, class: "fr-nav__link", target: "_self", aria: { current: action == :index ? "page" : nil }
+          = link_to "Annonce", '', class: "fr-nav__link", target: "_self", aria: { current: "page" }
 
-        %li.fr-nav__item
-          = link_to("Nouvelle annonce", new_super_admins_release_note_path(date: @release_note&.released_on), class: "fr-nav__link", target: "_self", aria: { current: action == :new ? "page" : nil })
-
-        - if action == :edit
-          %li.fr-nav__item
-            = link_to "Annonce", '', class: "fr-nav__link", target: "_self", aria: { current: "page" }
-
-        %li.fr-nav__item
-          = link_to "Annonces publiées", release_notes_path, class: "fr-nav__link", target: "_self"
+      %li.fr-nav__item
+        = link_to "Annonces publiées", release_notes_path, class: "fr-nav__link", target: "_self"
 
diff --git a/app/views/users/_main_navigation.html.haml b/app/views/users/_main_navigation.html.haml
new file mode 100644
index 000000000..602dfec9f
--- /dev/null
+++ b/app/views/users/_main_navigation.html.haml
@@ -0,0 +1,8 @@
+%nav#header-navigation.fr-nav{ role: :navigation, "aria-label" => t('main_menu', scope: [:layouts, :header]) }
+  %ul.fr-nav__list
+    - if params[:controller] == 'users/commencer'
+      %li.fr-nav__item
+        = link_to t('back', scope: [:layouts, :header]), url_for(:back), title: t('back_title', scope: [:layouts, :header]), class: 'fr-nav__link', "aria-controls" => "modal-header__menu"
+
+    %li.fr-nav__item
+      = link_to t('files', scope: [:layouts, :header]), dossiers_path, class: 'fr-nav__link', aria: { current: current_page?(dossiers_path) ? 'page' : nil, controls: "modal-header__menu" }
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 477434739..8b97107cb 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -56,7 +56,6 @@ en:
     subject: Subject
     message: Message
     send_mail: Send message
-    procedure: Procedures
     new_tab: New tab
   helpers:
     procedure:
diff --git a/config/locales/fr.yml b/config/locales/fr.yml
index a54e8d379..ace408772 100644
--- a/config/locales/fr.yml
+++ b/config/locales/fr.yml
@@ -47,7 +47,6 @@ fr:
     subject: Sujet
     message: Message
     send_mail: Envoyer le message
-    procedure: Démarches
     new_tab: "Nouvel onglet"
   helpers:
     procedure:
diff --git a/spec/components/main_navigation/instructeur_expert_navigation_component_spec.rb b/spec/components/main_navigation/instructeur_expert_navigation_component_spec.rb
new file mode 100644
index 000000000..ea743c2df
--- /dev/null
+++ b/spec/components/main_navigation/instructeur_expert_navigation_component_spec.rb
@@ -0,0 +1,85 @@
+describe MainNavigation::InstructeurExpertNavigationComponent, type: :component do
+  let(:component) { described_class.new }
+  let(:as_instructeur) { true }
+  let(:as_expert) { false }
+  let(:controller_name) { 'dossiers' }
+  let(:user) { build(:user) }
+
+  subject { render_inline(component) }
+
+  before do
+    if as_instructeur
+      user.build_instructeur
+    end
+
+    if as_expert
+      user.build_expert
+    end
+
+    allow_any_instance_of(ApplicationController).to receive(:current_user).and_return(user)
+    allow_any_instance_of(ApplicationController).to receive(:administrateur_signed_in?).and_return(false)
+    allow_any_instance_of(ApplicationController).to receive(:controller_name).and_return(controller_name)
+  end
+
+  describe 'when instructor is signed in' do
+    it 'renders a link to instructeur procedures with current page class' do
+      expect(subject).to have_link('Démarches', href: component.helpers.instructeur_procedures_path)
+      expect(subject).to have_selector('a[aria-current="page"]', text: 'Démarches')
+    end
+
+    it 'does not have Avis' do
+      expect(subject).not_to have_link('Avis')
+    end
+
+    context 'when instructor is also an expert' do
+      let(:as_expert) { true }
+      before do
+        allow(user.expert).to receive(:avis_summary).and_return({ unanswered: 0 })
+      end
+
+      it 'render have Avis link' do
+        expect(subject).to have_link('Avis', href: component.helpers.expert_all_avis_path)
+        expect(subject).not_to have_selector('a[aria-current="page"]', text: 'Avis')
+      end
+    end
+  end
+
+  describe 'when expert is signed in' do
+    let(:as_instructeur) { false }
+    let(:as_expert) { true }
+
+    let(:unanswered) { 0 }
+    let(:controller_name) { 'avis' }
+
+    before do
+      allow(user.expert).to receive(:avis_summary).and_return({ unanswered: })
+    end
+
+    it 'renders a link to expert all avis with current page class' do
+      expect(subject).to have_link('Avis', href: component.helpers.expert_all_avis_path)
+      expect(subject).to have_selector('a[aria-current="page"]', text: 'Avis')
+      expect(subject).not_to have_selector('span.badge')
+    end
+
+    it 'does not have Démarches link' do
+      expect(subject).not_to have_link('Démarches')
+    end
+
+    context 'when there are unanswered avis' do
+      let(:unanswered) { 2 }
+
+      it 'renders an unanswered avis badge for the expert' do
+        expect(subject).to have_selector('span.badge.warning', text: '2')
+      end
+    end
+
+    context 'when expert is also instructor' do
+      let(:as_instructeur) { true }
+
+      it 'render have Démarches link' do
+        expect(subject).to have_link('Démarches', href: component.helpers.instructeur_procedures_path)
+        expect(subject).not_to have_selector('a[aria-current="page"]', text: 'Démarches')
+      end
+    end
+  end
+end
diff --git a/spec/system/accessibilite/wcag_usager_spec.rb b/spec/system/accessibilite/wcag_usager_spec.rb
index 411ed2361..e9aec8277 100644
--- a/spec/system/accessibilite/wcag_usager_spec.rb
+++ b/spec/system/accessibilite/wcag_usager_spec.rb
@@ -27,6 +27,18 @@ describe 'wcag rules for usager', js: true do
     end
   end
 
+  def expect_axe_clean_without_main_navigation
+    # On page without main navigation content (like anonymous home page),
+    # there are either a bug in axe, either dsfr markup is not conform to wcag2a.
+    # There is no issue on pages having a child navigation.
+    expect(page).to be_axe_clean.excluding("#modal-header__menu")
+    expect(page).to be_axe_clean.within("#modal-header__menu").skipping("aria-prohibited-attr")
+  end
+
+  shared_examples "axe clean without main navigation" do
+    it { expect_axe_clean_without_main_navigation }
+  end
+
   context 'pages without the need to be logged in' do
     before do
       visit path
@@ -34,14 +46,14 @@ describe 'wcag rules for usager', js: true do
 
     context 'homepage' do
       let(:path) { root_path }
-      it { expect(page).to be_axe_clean }
+      it_behaves_like "axe clean without main navigation"
       it_behaves_like "external links have title says it opens in a new tab"
       it_behaves_like "aria-label do not mix with title attribute"
     end
 
     context 'sign_up page' do
       let(:path) { new_user_registration_path }
-      it { expect(page).to be_axe_clean }
+      it_behaves_like "axe clean without main navigation"
       it_behaves_like "external links have title says it opens in a new tab"
       it_behaves_like "aria-label do not mix with title attribute"
     end
@@ -54,11 +66,11 @@ describe 'wcag rules for usager', js: true do
 
       perform_enqueued_jobs do
         click_button 'Créer un compte'
-        expect(page).to be_axe_clean
+        expect_axe_clean_without_main_navigation
       end
     end
 
-    context 'sign_upc confirmation' do
+    context 'sign_up confirmation' do
       let(:path) { user_confirmation_path("user[email]" => "some@email.com") }
 
       it_behaves_like "external links have title says it opens in a new tab"
@@ -67,21 +79,21 @@ describe 'wcag rules for usager', js: true do
 
     context 'sign_in page' do
       let(:path) { new_user_session_path }
-      it { expect(page).to be_axe_clean.excluding '#user_email' }
+      it_behaves_like "axe clean without main navigation"
       it_behaves_like "external links have title says it opens in a new tab"
       it_behaves_like "aria-label do not mix with title attribute"
     end
 
     context 'contact page' do
       let(:path) { contact_path }
-      it { expect(page).to be_axe_clean }
+      it_behaves_like "axe clean without main navigation"
       it_behaves_like "external links have title says it opens in a new tab"
       it_behaves_like "aria-label do not mix with title attribute"
     end
 
     context 'commencer page' do
       let(:path) { commencer_path(path: procedure.path) }
-      it { expect(page).to be_axe_clean }
+      it_behaves_like "axe clean without main navigation"
       it_behaves_like "external links have title says it opens in a new tab"
       it_behaves_like "aria-label do not mix with title attribute"
     end
@@ -90,7 +102,7 @@ describe 'wcag rules for usager', js: true do
       visit commencer_path(path: procedure.reload.path)
 
       page.find("#help-menu_button").click
-      expect(page).to be_axe_clean
+      expect_axe_clean_without_main_navigation
     end
   end