Presorted Standard Mail is a classification representing a cost-saving solution for businesses and organizations sending large quantities of non-urgent correspondence. This mail class allows entities like direct marketers, non-profits, and publishers to significantly reduce postage expenses by performing preparation work that shifts labor away from the United States Postal Service. Utilizing this option is a strategic choice for campaigns where the volume of mail is substantial and the delivery timeline is flexible, making it the workhorse of mass-mailing efforts across the country.
Defining Presorted Standard Mail
The official designation for what was historically known as Presorted Standard Mail is now USPS Marketing Mail, reflecting its primary use for promotional and advertising materials. This service is fundamentally a bulk mailing option offering reduced postage rates in exchange for the mailer completing specific sorting and preparation tasks. The discounted price is a “workshare” incentive, recognizing that the mailer is undertaking the labor of organizing the mailstream before it reaches a USPS processing facility. This pre-processing allows the Postal Service to bypass several initial handling steps, translating directly into the lower per-piece cost. The pieces must be identical in content, size, and weight, reinforcing the intent of the class for mass distribution.
Key Benefits of Using Standard Mail
The primary advantage of using USPS Marketing Mail is the reduction in per-piece postage costs compared to sending the same volume via First-Class Mail. This economic benefit is the main driver for businesses that rely on direct mail advertising, allowing them to stretch their marketing budgets considerably farther. The lower rates make large-scale campaigns financially feasible, enabling mailers to reach a broader audience with promotional materials, catalogs, and newsletters. This cost efficiency is compounded when mailing extremely large volumes.
Eligibility and Volume Requirements
To qualify a mailing for discounted USPS Marketing Mail rates, a minimum volume threshold must be met for each submission. This requirement is set at either 200 mailpieces or a total weight of 50 pounds, ensuring the service is used only for legitimate bulk mailings. The content of the mail is also restricted, as it must be non-personal and non-urgent, typically including flyers, circulars, or product announcements. Items considered personal correspondence, invoices, or time-sensitive materials are not permitted under this service class and must be mailed using First-Class rates.
Essential Preparation and Documentation
Achieving the presort status that unlocks discounted rates requires meticulous preparation of both the physical mailpieces and the accompanying documentation. To ensure address accuracy and qualify for automation discounts, the mailing list must undergo CASS (Coding Accuracy Support System) certification for address standardization. It also requires NCOA (National Change of Address) processing to comply with the Move Update requirement every 95 days. After verification, the mailpieces must be physically sorted by ZIP Code, typically down to the 5-digit or Carrier Route level, using specialized presorting software.
The sorted mail is then bundled and placed into standardized USPS containers, such as letter trays with sleeves or flat trays with white lids, which must be secured with plastic strapping. Each container must bear a specific label identifying the contents, destination, and level of sortation achieved. Finally, the mailer must generate and submit a detailed Postage Statement to the USPS. This statement electronically documents the total volume, weight, and the specific postage rate claimed, justifying the discounted price and proving the workshare.
Understanding the Different Mailpiece Classes
The pricing structure within USPS Marketing Mail is hierarchical, rewarding mailers who perform deeper levels of sortation with progressively lower postage rates. The most significant discounts are found in the Enhanced Carrier Route (ECR) rates, secured by sorting mail to the individual delivery routes of a postal carrier.
Carrier Route Rates
The deepest discount is the Saturation rate, earned by mailing to at least 90% of active residential addresses or 75% of total active deliveries on a specific carrier route. These pieces must be sorted in the carrier’s walk sequence order. The High-Density price requires a minimum of 125 pieces delivered to a single carrier route, also arranged in walk sequence.
Facility Level Rates
For mail that cannot meet density requirements, rates are based on the processing facility level. The Basic and Mixed AADC (Automated Area Distribution Center) rates are used for mail sorted only to the level of a major USPS processing facility serving multiple three-digit ZIP Code prefixes. Mixed AADC represents the highest-tier rate because it is the least precise sortation, containing mail destined for multiple AADCs that the USPS must then separate.
Special Rates and Discounts
Non-Profit Standard Mail offers the lowest postage rates available, strictly reserved for organizations with specific USPS authorization. This special pricing is intended to support the mission-driven activities of qualified entities, such as charities and educational institutions. Mailers can achieve additional savings by utilizing destination entry discounts, which involve transporting the mail directly to a processing facility closer to the final delivery point, further reducing the USPS’s transportation costs.
Standard Mail vs. First-Class Mail
The distinction between USPS Marketing Mail and First-Class Mail is defined by service quality, delivery speed, and handling policies. First-Class Mail is the preferred service for time-sensitive materials, offering a non-guaranteed delivery window of one to three business days. USPS Marketing Mail delivery is non-guaranteed and slower, often taking three to ten business days, as it is processed on a space-available basis after First-Class mail.
A significant difference is the handling of undeliverable mail. First-Class Mail is automatically forwarded to a recipient’s new address for a period of time, or returned to the sender at no extra cost. USPS Marketing Mail is not forwarded or returned by default, and undeliverable pieces are generally disposed of by the Postal Service. To receive forwarding or return services, the mailer must purchase an ancillary service endorsement and pay additional fees, which must be factored into the overall campaign budget.
Getting Started with Presorted Mail
Utilizing presorted rates requires obtaining a mailing permit, such as a Permit Imprint, from the USPS. This allows postage to be paid through a business account rather than using stamps. Prospective mailers must decide whether to invest in the software, equipment, and expertise required to perform the complex sorting and preparation in-house. For many businesses, partnering with a professional mail house or mailing service provider is the most efficient path to ensure compliance with all postal regulations.

