USPS Standard Mail is an alternate mail class (only available in the US) that provides lower postage rates, but at slower speeds than USPS First Class. USPS does not provide delivery time guarantees for Standard Class mail.
USPS Standard Mail is an alternate mail class (only available in the US) that provides lower postage rates, but at slower speeds than USPS First Class. USPS does not provide delivery time guarantees for Standard Class mail.