Some people may wait longer for their packages if the U.S. Postal Service implements a new mail delivery system.

The system, first reported by the Washington Post, would require shipments destined for rural or remote areas to stay at distribution centers an extra day so that carriers could prioritize delivery to locations within 50 miles of a center. This would extend delivery times for mail sent over longer distances.

Those who live closer to the processing facilities where most mail and packages arrive can expect faster service and delivery a day earlier.

However, the U.S. Postal Service cannot afford to maintain this model for deliveries outside the 50-mile radius.

“I think that some of the mail arrived 12 hours late, that’s the price we’ve paid for neglecting this place,” Postmaster General Louis DeJoy told the Washington Post. “If you look around in all other countries, delivery takes longer and is much more expensive. We’re trying to save the Postal Service – not figuratively, not to advocate for something. We’re trying to save the Postal Service literally.”

While it may take a day longer for some packages to reach their destination, mail across the country is still being delivered in five days or less, the Washington Post reported.

By adjusting delivery times, transportation costs could be reduced and mail could be processed sooner, which in turn would reduce carbon emissions and the number of trucks driving through residential areas, the statement said. Officials added that the new plan would save up to $3 billion a year.

DeJoy also told the Washington Post that the new policy would not be implemented until after the November election.