Order printing online: live pricing, a proof before anything prints, and free design in Plavidian Studio™, no account needed
Plavidian760-666-3130Print and mail production in Vista, California.

Postal Encyclopedia

Saturation

Route coverage level

Mail Classes & RatesUpdated 2026-07-24

The deepest carrier-route price level, based on covering the great majority of a route's delivery addresses rather than on a flat piece count.

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

Need this applied to a real job?

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.

Ask Plavidian Expert Get a Custom Quote