However, other provisions in Title 39 cast into doubt the conclusion that the Service's authority under a 401(3) is sufficiently broad to encompass changes in rates or mail classifications by agreement alone.
 other provisions in Title 26 cast into doubt the conclusion that the Service's authority
mnli hypothesis:  other provisions in Title 26 cast into doubt the conclusion that the Service's authority premise: However, other provisions in Title 39 cast into doubt the conclusion that the Service's authority under a 401(3) is sufficiently broad to encompass changes in rates or mail classifications by agreement alone.