Media Mail eligibility for used goods: sort a mixed box against the rules

The word "media" is not the test

A reseller with a box of mixed items might see DVDs, a stack of comics, a board game rulebook, sheet music, a video game, a magazine bundle and a cookbook, and think "media" covers the lot. USPS Media Mail is much narrower than that. It's a list of specific content types in the Domestic Mail Manual, and anything not on the list doesn't qualify, however educational it feels. Getting it wrong can mean postage due, delays, or an item returned.

This guide covers Media Mail eligibility for used goods, based on USPS Domestic Mail Manual (DMM) section 173, checked November 8, 2026. It isn't legal advice, and only USPS decides what qualifies. When you're unsure, use another service or ask at a Post Office before you ship.

What DMM 173 lists

DMM 173 says only these items may be mailed at Media Mail prices:

DMM 173 also says Media Mail is charged per pound, with any fraction counted as a whole pound and a one-pound minimum; that USPS doesn't guarantee delivery within a specified time; and that Media Mail isn't sealed against postal inspection. Mailing at Media Mail prices is consent to inspection of the contents.

Sorting a mixed box against the list

Here's how a typical reseller box sorts when you read the list literally. Where the DMM doesn't name a category, treat it as not qualifying unless USPS tells you otherwise.

Mixed parcels: A box is eligible only if its contents are. Putting a qualifying book in with a toy doesn't make the toy qualify. Ship mixed bundles by another service.

What you can put in with the item

DMM 173 sets rules on enclosures. It allows printed matter mailable as USPS Marketing Mail to be included loose with qualifying material. It lists written additions that don't need First-Class postage, such as the sender's and addressee's names and addresses, marks describing the contents, and instructions for using the item. Markings that have the character of personal correspondence generally require additional First-Class postage. A short packing slip with the order details is common practice; a chatty handwritten letter is the kind of addition the DMM treats differently. Read the enclosure sections before adding notes.

Worked example: Media Mail weight and a delivery promise

In this chosen example, a seller ships a 2 pound 3 ounce box of DVDs.

Price shipping from the 3-pound rate, not 2 pounds, and don't promise buyers a fast arrival date. If your platform's handling and delivery estimates assume a faster service, choose Media Mail only where the listing makes the slower option clear. The shipping time promises manual explains why delivery promises matter.

When Media Mail is the wrong choice even if eligible

• Time-sensitive orders, such as textbooks a student needs for a class start date.
• High-value collectibles, where you want insurance and faster handling; check what coverage your chosen service includes.
• Fragile items, such as records in thin sleeves, where a slower trip means more handling. Pack them as if they're fragile, as the fragile items guide describes.

Media Mail and marketplace labels

Many marketplace label tools offer Media Mail for books and recordings. Choosing it in the tool doesn't make an item eligible. The DMM content rules still apply, and the parcel may be inspected. For book-specific checks such as edition, missing inserts and access codes, see the used books manual.

Common mistakes

• Treating "educational" as eligible.
• Shipping comics or magazines with advertising as Media Mail.
• Adding a non-qualifying item to a box of books.
• Pricing from the scale reading instead of rounding up to the next pound.
• Promising a delivery date the service doesn't guarantee.

Read the list, not the label

If the item isn't on DMM 173's list, it doesn't ship at Media Mail prices. Sort each box against the list, round weight up to the next pound, keep enclosures simple, and choose another service whenever you're unsure.