Us Postage Rates 2024 Per Ounce. First class postage rates 2024 2 oz lexie opalina, us postage rates 2024 per ounce. New usps ® rates approved for july 14, 2024 the usps mailing services price changes will take effect july 14, 2024.
Usps® rolled out new mailing rate changes, fees, and other significant shifts this july. Changes by usps for postcards, flats & letter size.