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Postal Encyclopedia

Carrier Route Basic

CR Basic

OtherUpdated 2026-07-24

The entry carrier-route price level, requiring at least 10 pieces on a route. Flats have it; letters don't, so a sparse letter route prices as automation.

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.

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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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