Moving Less Mail
The Postal Service moves mail using planes, trains, trucks, cars, boats, ferries, helicopters, bicycles, hovercrafts, subways and even mules. It operates the largest civilian vehicle fleet in the world with more than 219,000 vehicles. Its fleet of trucks drives nearly 4.1 million miles and uses more than 400,000 gallons of fuel daily. To put this in perspective, when fuel costs increase by one penny, the cost to the Postal Service increases by more than $8 million annually.