diff --git a/app/controllers/api/children_controller.rb b/app/controllers/api/children_controller.rb
index f42c13728..bbd1d8e04 100644
--- a/app/controllers/api/children_controller.rb
+++ b/app/controllers/api/children_controller.rb
@@ -47,7 +47,7 @@ class API::ChildrenController < API::APIController
     authorize @child
 
     cparams = params.require(:child).permit(:validated_at)
-    if @child.update(validated_at: cparams[:validated_at].present? ? Time.current : nil)
+    if ChildService.validate(@child, cparams[:validated_at].present?)
       render :show, status: :ok, location: child_path(@child)
     else
       render json: @child.errors, status: :unprocessable_entity
diff --git a/app/services/child_service.rb b/app/services/child_service.rb
index de4aea235..e589a9f54 100644
--- a/app/services/child_service.rb
+++ b/app/services/child_service.rb
@@ -15,4 +15,20 @@ class ChildService
   def self.update(child, child_params)
     child.update(child_params)
   end
+
+  def self.validate(child, is_valid)
+    is_updated = child.update(validated_at: is_valid ? Time.current : nil)
+    if is_updated
+      if is_valid
+        NotificationCenter.call type: 'notify_user_child_is_validated',
+                                receiver: child.user,
+                                attached_object: child
+      else
+        NotificationCenter.call type: 'notify_user_child_is_invalidated',
+                                receiver: child.user,
+                                attached_object: child
+      end
+    end
+    is_updated
+  end
 end
diff --git a/app/views/api/notifications/_notify_user_child_is_invalidated.json.jbuilder b/app/views/api/notifications/_notify_user_child_is_invalidated.json.jbuilder
new file mode 100644
index 000000000..0d39d7100
--- /dev/null
+++ b/app/views/api/notifications/_notify_user_child_is_invalidated.json.jbuilder
@@ -0,0 +1,2 @@
+json.title notification.notification_type
+json.description t('.child_invalidated')
diff --git a/app/views/api/notifications/_notify_user_child_is_validated.json.jbuilder b/app/views/api/notifications/_notify_user_child_is_validated.json.jbuilder
new file mode 100644
index 000000000..d53c23b3c
--- /dev/null
+++ b/app/views/api/notifications/_notify_user_child_is_validated.json.jbuilder
@@ -0,0 +1,2 @@
+json.title notification.notification_type
+json.description t('.child_validated')
diff --git a/app/views/notifications_mailer/notify_user_child_is_invalidated.html.erb b/app/views/notifications_mailer/notify_user_child_is_invalidated.html.erb
new file mode 100644
index 000000000..3a90e8daa
--- /dev/null
+++ b/app/views/notifications_mailer/notify_user_child_is_invalidated.html.erb
@@ -0,0 +1,5 @@
+<%= render 'notifications_mailer/shared/hello', recipient: @recipient %>
+
+<p>
+  <%= t('.body.child_invalidated') %>
+</p>
diff --git a/app/views/notifications_mailer/notify_user_child_is_validated.html.erb b/app/views/notifications_mailer/notify_user_child_is_validated.html.erb
new file mode 100644
index 000000000..7d0ae40ae
--- /dev/null
+++ b/app/views/notifications_mailer/notify_user_child_is_validated.html.erb
@@ -0,0 +1,5 @@
+<%= render 'notifications_mailer/shared/hello', recipient: @recipient %>
+
+<p>
+  <%= t('.body.child_validated') %>
+</p>
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 4a588df09..bfa86abbe 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -447,6 +447,10 @@ en:
         account_validated: "Your account is valid."
       notify_user_is_invalidated:
         account_invalidated: "Your account is invalid."
+      notify_user_child_is_validated:
+        child_validated: "Your account child is valid."
+      notify_user_child_is_invalidated:
+        child_invalidated: "Your account child is invalid."
       notify_user_supporting_document_refusal:
         refusal: "Your supporting documents were refused"
       notify_admin_user_supporting_document_refusal:
diff --git a/config/locales/fr.yml b/config/locales/fr.yml
index 8effd40d2..8961745e6 100644
--- a/config/locales/fr.yml
+++ b/config/locales/fr.yml
@@ -447,6 +447,10 @@ fr:
         account_validated: "Votre compte est valide."
       notify_user_is_invalidated:
         account_invalidated: "Votre compte est invalide."
+      notify_user_child_is_validated:
+        child_validated: "Votre compte enfant est valide."
+      notify_user_child_is_invalidated:
+        child_invalidated: "Votre compte enfant est invalide."
       notify_user_supporting_document_refusal:
         refusal: "Vos pièces justificatives ont été refusées"
       notify_admin_user_supporting_document_refusal:
diff --git a/config/locales/mails.en.yml b/config/locales/mails.en.yml
index 3c759b770..bf2c74d02 100644
--- a/config/locales/mails.en.yml
+++ b/config/locales/mails.en.yml
@@ -401,6 +401,14 @@ en:
       subject: "Account invalidated"
       body:
         account_invalidated: "Your account was invalidated. You won't be able to book anymore, until your account is validated again."
+    notify_user_child_is_validated:
+      subject: "Child account validated"
+      body:
+        child_validated: "Your child account was validated. Now, you have access to event booking features."
+    notify_user_child_is_invalidated:
+      subject: "Child account invalidated"
+      body:
+        account_invalidated: "Your child account was invalidated. You won't be able to book event, until your child account is validated again."
     notify_user_supporting_document_refusal:
       subject: "Your supporting documents were refused"
       body:
diff --git a/config/locales/mails.fr.yml b/config/locales/mails.fr.yml
index f3607bb3a..69e10ab97 100644
--- a/config/locales/mails.fr.yml
+++ b/config/locales/mails.fr.yml
@@ -401,6 +401,14 @@ fr:
       subject: "Compte invalidé"
       body:
         account_invalidated: "Votre compte a été invalidé. Vous ne pourrez plus réserver, jusqu'à ce que votre compte soit à nouveau validé."
+    notify_user_child_is_validated:
+      subject: "Compte enfant validé"
+      body:
+        account_validated: "Votre compte enfant a été validé. Vous avez maintenant accès aux fonctionnalités de réservation de l'événement."
+    notify_user_child_is_invalidated:
+      subject: "Compte enfant invalidé"
+      body:
+        account_invalidated: "Votre compte enfant a été invalidé. Vous ne pourrez plus réserver l'événement, jusqu'à ce que votre compte enfant soit à nouveau validé."
     notify_user_supporting_document_refusal:
       subject: "Vos pièces justificatives ont été refusées"
       body:
diff --git a/db/seeds/notification_types.rb b/db/seeds/notification_types.rb
index 3c8240ae2..5cd95f461 100644
--- a/db/seeds/notification_types.rb
+++ b/db/seeds/notification_types.rb
@@ -55,3 +55,19 @@ unless NotificationType.find_by(name: 'notify_admin_child_created')
     is_configurable: true
   )
 end
+
+unless NotificationType.find_by(name: 'notify_user_child_is_validated')
+  NotificationType.create!(
+    name: 'notify_user_child_is_validated',
+    category: 'users_accounts',
+    is_configurable: false
+  )
+end
+
+unless NotificationType.find_by(name: 'notify_user_child_is_invalidated')
+  NotificationType.create!(
+    name: 'notify_user_child_is_invalidated',
+    category: 'users_accounts',
+    is_configurable: false
+  )
+end