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DMM 601 Mailability - Postal Explorer - USPS
See the physical standards for processing categories in 101 for retail (single-piece price) mail, 201 for discount letters, 301 for discount flats, and 401 for
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Notice 123 | Postal Explorer
RetailLetters, Large Envelopes Parcels. Flat Rate Envelope: $31.40. Legal Flat Rate Envelope: $31.65.
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postal bulletin 22557 (10-22-20) - About USPS home
Nov 1, 2020 The price includes a $1.50 per box discount for mail sent to APO/. FPO/DPO destinations worldwide. Priority Mail Flat Rate boxes are
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