This is already done on a few star routes at about one-half the cost of rural carriers, and it is reportedly being done by competitors of the Postal Services in the parcel area.
Rural carriers are the most expensive to employ.
mnli hypothesis: Rural carriers are the most expensive to employ. premise: This is already done on a few star routes at about one-half the cost of rural carriers, and it is reportedly being done by competitors of the Postal Services in the parcel area.