DeJoy's USPS slowdown plan will delay the mail. What it means for your Zip code "Las Vegas, Seattle, San Diego, Orlando and countless communities in between will see mail service slow by as much as a day under the U.S. Postal Service’s strategic restructuring plan, a Washington Post analysis shows. The new delivery regimen, for which the agency seeks regulatory approval, disproportionately affects states west of the Rocky Mountains and the country’s mainland extremities, including large swaths of southern Texas and Florida."