¶What does PRSRT STD mean in one line
If a piece of mail has PRSRT STD printed where a stamp would go, you are holding bulk advertising. The marking is the postage class the sender paid for, and it almost always means a circular, catalog, coupon pack, fundraising letter, or promotional offer sent to a lot of people at once.
That is the short answer. The longer answer is worth a minute, because the marking also tells you something useful about whether the piece is worth your attention, whether the sender will keep mailing you, and whether you can do anything about it.
¶What PRSRT STD stands for
PRSRT STD is short for Presorted Standard. Two parts, two pieces of information:
- Presorted means the mailer arranged the pieces in the order USPS wants, sorted by ZIP code and carrier route, before dropping them off. Doing that work for USPS earns a discounted rate. It is why bulk mail is cheap to send.
- Standard is the old name for the rate class itself: the bulk advertising tier, as opposed to First-Class.
Put together, PRSRT STD is the bulk advertising class, presorted for the discount. You will usually find it in or just below the postage block, often alongside U. S. POSTAGE PAID and a PERMIT NO., which is simply how the sender paid for the postage in bulk rather than with stamps.
¶Why you'll also see "Marketing Mail," "PRSRT MKTG," and "Nonprofit"
In 2017 USPS renamed Standard Mail to USPS Marketing Mail, but it allowed mailers to keep using either wording. The result is a handful of markings that all mean the same bulk advertising class:
- PRSRT STD and Presorted Standard (the older wording).
- USPS Marketing Mail, PRSRT MKTG, or PRSRT MKT (the newer wording).
- Nonprofit Org, Nonprofit Org., or Nonprofit, which is the same class at the discounted rate charities, schools, and similar organizations qualify for.
If you see any of these, the piece is bulk mail. The fundraising appeal marked Nonprofit and the retailer’s flyer marked PRSRT STD are closer cousins than they look; only the rate differs.
¶PRSRT STD vs First-Class: telling junk from something that matters
The most useful thing the class marking does is help you separate advertising from mail that might actually need you. Compare the postage area:
- PRSRT STD / Marketing Mail / Nonprofit: bulk advertising. Safe to treat as junk in almost all cases.
- PRSRT FIRST-CLASS or plain First-Class: costs the sender more, and is what bills, bank and account statements, government notices, and many personalized offers travel on. A First-Class piece is more likely to want a response from you specifically.
Two cautions. First, some senders print an indicia or meter mark that looks like a real stamp but actually reads ” Presorted Standard,” which can make a promotional piece feel more personal than it is. Read the words, not the shape. Second, a small number of legitimate senders, such as certain health plans and benefit programs, use bulk mail to save money, so when the sender matters to you, check who it is rather than tossing on the class alone. For a full breakdown of every other marking on the label, see the field guide to junk mail address label codes.
¶What you can do about PRSRT STD mail
The class marking does not decide whether you can stop the mail. The name line does.
If the piece is addressed to you by name, a mailing list with your name on it exists, and a list is something you can be removed from. One useful detail: a PRSRT STD piece with no service-requested endorsement near the return address is simply discarded by USPS if it cannot be delivered, so the sender never learns whether it reached you. That means ignoring it does nothing; you have to opt out to make it stop.
The fastest way to opt out is PaperKarma. Take a photo of the piece and we contact the sender and get you removed, across every brand of unwanted mail, on one subscription. The do-it-yourself route is to find each sender’s own opt-out line and work through them one at a time, which works if you have the patience but rebuilds as new lists rent your name.
If the piece is addressed to ” Resident” or ” Postal Customer,” it was sent to every address on the route with no list behind it, so it cannot be individually stopped. That blanket mail, and the distribution codes that mark it, is covered in mailing label codes decoded.
¶Frequently asked questions
What does PRSRT STD mean?
PRSRT STD is short for Presorted Standard. It is the postage class the sender paid for: the bulk advertising rate, now also called USPS Marketing Mail. ” Presorted” means the mailer arranged the pieces in the order USPS wants before drop-off, which earns the discounted rate. The marking sits in or near the postage block, where a stamp would be.
Is PRSRT STD junk mail?
Almost always, yes. PRSRT STD is the class advertisers use for mass mailings, so a piece marked this way is typically a circular, catalog, coupon pack, or fundraising appeal. A small number of legitimate senders, such as some health plans and benefit programs, also use bulk mail to save money, so check who sent it before assuming it can be ignored. But the class itself tells you the piece was mailed in bulk, not sent to you personally.
What is the difference between PRSRT STD and Presorted First-Class?
Cost and intent. PRSRT STD (Marketing Mail) is the cheap bulk advertising rate. PRSRT FIRST-CLASS, or just First-Class, costs the sender more and is what bills, bank statements, and many personalized offers travel on. As a rule of thumb, a First-Class piece is more likely to want a response from you specifically, while a PRSRT STD piece is advertising sent to many people at once.
Why does my mail say PRSRT STD but have what looks like a stamp?
Some senders print an indicia or use a meter strip that resembles a real stamp but actually reads a rate like ” Presorted Standard.” It can make a promotional piece look more personal than it is. If the postage area says PRSRT STD, Presorted Standard, PRSRT MKTG, or Marketing, the piece was mailed at the bulk advertising rate regardless of how stamp-like the marking looks.
What does Nonprofit Org mean on mail?
Nonprofit Org, Nonprofit Org., or Nonprofit is the same bulk class as PRSRT STD, billed at the discounted nonprofit rate. Charities, schools, churches, and similar organizations qualify for it. A fundraising letter marked Nonprofit and a retailer’s flyer marked PRSRT STD are the same kind of bulk mail; only the rate differs.
Can I stop PRSRT STD mail?
It depends on the address, not the class. If the piece is addressed to you by name, it came from a mailing list, and you can be removed from that list. The fastest way is PaperKarma: photograph the piece and we contact the sender. If it is addressed to ” Resident” or ” Postal Customer,” it is blanket route mail with no list behind it, and it cannot be individually stopped.

