diff --git a/app/models.py b/app/models.py
index a2df80f5a..1c6621b57 100644
--- a/app/models.py
+++ b/app/models.py
@@ -298,6 +298,7 @@ PRECOMPILED_LETTER = 'precompiled_letter'
 UPLOAD_DOCUMENT = 'upload_document'
 EDIT_FOLDER_PERMISSIONS = 'edit_folder_permissions'
 UPLOAD_LETTERS = 'upload_letters'
+INTERNATIONAL_LETTERS = 'international_letters'
 
 SERVICE_PERMISSION_TYPES = [
     EMAIL_TYPE,
@@ -311,6 +312,7 @@ SERVICE_PERMISSION_TYPES = [
     UPLOAD_DOCUMENT,
     EDIT_FOLDER_PERMISSIONS,
     UPLOAD_LETTERS,
+    INTERNATIONAL_LETTERS,
 ]
 
 
diff --git a/migrations/versions/0316_int_letters_permission.py b/migrations/versions/0316_int_letters_permission.py
new file mode 100644
index 000000000..329d2c27d
--- /dev/null
+++ b/migrations/versions/0316_int_letters_permission.py
@@ -0,0 +1,22 @@
+"""
+
+Revision ID: 0316_int_letters_permission
+Revises: 0315_document_download_count
+Create Date: 2020-09-13 28:17:17.110495
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+revision = '0316_int_letters_permission'
+down_revision = '0315_document_download_count'
+
+
+def upgrade():
+    op.execute("INSERT INTO service_permission_types VALUES ('international_letters')")
+
+
+def downgrade():
+    op.execute("DELETE FROM service_permissions WHERE permission = 'international_letters'")
+    op.execute("DELETE FROM service_permission_types WHERE name = 'international_letters'")