The adjustments affect first-class mail, periodicals, marketing mail and package services, with 75% of first-class mail maintaining the same service standard, 14% upgraded to a faster standard and ...

The changes coming to USPS services will be phased in, with the first tranche taking effect at the start of April.

When it comes to sending letters, postcards, and small packages across the U.S. or internationally, First Class Mail remains one of the most popular and cost-effective mailing options offered by ...