For retailers requiring deliveries to remote locations or smaller markets, a truck with a demountable body filled with product is dispatched to a remote location. The body is demounted and a waiting empty demountable body is trucked back to the warehouse. A local driver with a demountable power unit picks up the demountable and makes last mile deliveries.
A "pup" is a 40' delivery trailer pulled by a tractor. The pup trailer is detached and parked in a secure location. A local last-mile delivery professional with a day tractor picks up the pup and makes deliveries then returns the empty pup for its pick up and return to the warehouse.