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Postal Encyclopedia

Single-Piece

Nonpresorted individual postage

Mail Classes & RatesUpdated 2026-07-24

The postage price for pieces that don't qualify for presort or automation discounts, such as single-piece (nonpresorted) First-Class machinable letters.

Definition reviewed 2026-07-24. This is a plain-English Plavidian reference; for USPS terms, the Domestic Mail Manual is the authority. For your own job, the final mail class, postage, and preparation are confirmed after list processing and production review.

Related terms in Mail Classes & Rates

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Ask Plavidian Expert for an answer based on the USPS Domestic Mail Manual, or send us the job and we'll confirm the preparation before you print.

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