diff --git a/app/main/views/service_settings.py b/app/main/views/service_settings.py
index 9aa2257e8..6bebd361b 100644
--- a/app/main/views/service_settings.py
+++ b/app/main/views/service_settings.py
@@ -305,6 +305,35 @@ def service_set_permission(service_id, permission):
     )
 
 
+@main.route("/services/<uuid:service_id>/service-settings/permissions/broadcast", methods=["GET", "POST"])
+@user_is_platform_admin
+def service_set_broadcast_permission(service_id):
+
+    title = PLATFORM_ADMIN_SERVICE_PERMISSIONS['broadcast']['title']
+    form = ServiceOnOffSettingForm(
+        name=title,
+        enabled=current_service.has_permission('broadcast')
+    )
+
+    if form.validate_on_submit():
+
+        if form.enabled.data:
+            current_service.force_permission('broadcast', on=True)
+            current_service.force_permission('email', on=False)
+            current_service.force_permission('sms', on=False)
+            current_service.force_permission('letter', on=False)
+        else:
+            current_service.force_permission('broadcast', on=False)
+
+        return redirect(url_for(".service_settings", service_id=service_id))
+
+    return render_template(
+        'views/service-settings/set-service-setting.html',
+        title=title,
+        form=form,
+    )
+
+
 @main.route("/services/<uuid:service_id>/service-settings/archive", methods=['GET', 'POST'])
 @user_has_permissions('manage_service')
 def archive_service(service_id):
diff --git a/app/navigation.py b/app/navigation.py
index a2a5137cd..e099d3776 100644
--- a/app/navigation.py
+++ b/app/navigation.py
@@ -307,6 +307,7 @@ class HeaderNavigation(Navigation):
         'service_switch_count_as_live',
         'service_switch_live',
         'service_set_permission',
+        'service_set_broadcast_permission',
         'service_verify_reply_to_address',
         'service_verify_reply_to_address_updates',
         'services_or_dashboard',
@@ -635,6 +636,7 @@ class MainNavigation(Navigation):
         'service_switch_count_as_live',
         'service_switch_live',
         'service_set_permission',
+        'service_set_broadcast_permission',
         'services_or_dashboard',
         'show_accounts_or_dashboard',
         'sign_in',
@@ -933,6 +935,7 @@ class CaseworkNavigation(Navigation):
         'service_switch_count_as_live',
         'service_switch_live',
         'service_set_permission',
+        'service_set_broadcast_permission',
         'service_verify_reply_to_address',
         'service_verify_reply_to_address_updates',
         'services_or_dashboard',
@@ -1237,6 +1240,7 @@ class OrgNavigation(Navigation):
         'service_switch_count_as_live',
         'service_switch_live',
         'service_set_permission',
+        'service_set_broadcast_permission',
         'service_verify_reply_to_address',
         'service_verify_reply_to_address_updates',
         'services_or_dashboard',
diff --git a/tests/app/main/views/service_settings/test_service_setting_permissions.py b/tests/app/main/views/service_settings/test_service_setting_permissions.py
index ece67d2a3..8c88d630b 100644
--- a/tests/app/main/views/service_settings/test_service_setting_permissions.py
+++ b/tests/app/main/views/service_settings/test_service_setting_permissions.py
@@ -1,4 +1,5 @@
 import functools
+from unittest.mock import call
 
 import pytest
 from flask import url_for
@@ -38,15 +39,34 @@ def test_service_set_permission_requires_platform_admin(
     )
 
 
-@pytest.mark.parametrize('permission, form_data, on', [
-    ('inbound_sms', 'True', True),
-    ('inbound_sms', 'False', False),
-    ('email_auth', 'True', True),
-    ('email_auth', 'False', False),
-    ('international_letters', 'True', True),
-    ('international_letters', 'False', False),
-    ('broadcast', 'True', True),
-    ('broadcast', 'False', False),
+@pytest.mark.parametrize('permission, form_data, expected_calls', [
+    ('inbound_sms', 'True', [
+        call('inbound_sms', on=True),
+    ]),
+    ('inbound_sms', 'False', [
+        call('inbound_sms', on=False),
+    ]),
+    ('email_auth', 'True', [
+        call('email_auth', on=True),
+    ]),
+    ('email_auth', 'False', [
+        call('email_auth', on=False),
+    ]),
+    ('international_letters', 'True', [
+        call('international_letters', on=True),
+    ]),
+    ('international_letters', 'False', [
+        call('international_letters', on=False),
+    ]),
+    ('broadcast', 'True', [
+        call('broadcast', on=True),
+        call('email', on=False),
+        call('sms', on=False),
+        call('letter', on=False),
+    ]),
+    ('broadcast', 'False', [
+        call('broadcast', on=False),
+    ]),
 ])
 def test_service_set_permission(
     mocker,
@@ -55,7 +75,7 @@ def test_service_set_permission(
     mock_get_inbound_number_for_service,
     permission,
     form_data,
-    on
+    expected_calls,
 ):
     force_permission = mocker.patch('app.models.service.Service.force_permission')
     response = platform_admin_client.post(
@@ -64,9 +84,7 @@ def test_service_set_permission(
     )
     assert response.status_code == 302
     assert response.location == url_for('main.service_settings', service_id=service_one['id'], _external=True)
-    force_permission.assert_called_with(
-        permission, on=on
-    )
+    assert force_permission.call_args_list == expected_calls
 
 
 @pytest.mark.parametrize('service_fields, endpoint, kwargs, text', [