U.S. Postal Service Announces New Competitive Prices and Two New Mail
https://about.usps.com/newsroom/national-releases/2021/1110-usps-announces-new-competitive-prices-and-two-new-mail-products-for-2022.htm
WebNov 10, 2021 · Regular Flat-Rate Envelopes, Legal Flat-Rate Envelopes, and Padded Flat-Rate Envelopes would increase to $8.95, $9.25, and $9.65 respectively. The proposed domestic Priority Mail Flat Rate Retail price changes are:
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