Does USPS Form 1583 Have to Be Notarized?

Short answer: no, not always. Longer answer: it depends entirely on your mailbox provider - and that nuance trips up a lot of people setting up a virtual mailbox for the first time.

What the Rules Actually Say

USPS Form 1583 authorizes a Commercial Mail Receiving Agency (CMRA) to receive mail on your behalf. USPS rules give providers two ways to verify the form:

• The provider verifies your identity and witnesses the form themselves, through an authorized representative, or

• You obtain a notarized acknowledgment of your signature

Notice that notarization is one path, not the only path. USPS does not require every Form 1583 to be notarized.

So Why Did My Provider Ask for a Notary?

Because the choice is theirs. Many virtual mailbox companies - especially fully online ones with no storefront where you could appear in person - require notarization as their identity-verification method. Others handle verification in-house and never mention a notary at all.

If your provider asked for notarization, that request is effectively a requirement for opening your mailbox with them.

Notarization vs. Provider Verification: What Is the Difference?

Provider verification means an authorized employee of the CMRA checks your ID and witnesses your acknowledgment. Notarization means a commissioned notary public verifies your identity and completes the formal notarial certificate on page 2 of the form. Both accomplish the same underlying goal - confirming the right person signed knowingly and voluntarily - but the notarized route creates an independent, official record.

How to Check What Your Provider Requires

Ask them directly, before you do anything else:

• Does my Form 1583 need to be notarized, or do you verify it yourselves?

• If notarized: do you accept remote online notarization (RON)?

• Do you need a wet-ink signature, an electronic signature, or a specific file format?

What If I Notarize It Anyway?

Nothing bad. A notarized Form 1583 is still valid even if your provider did not strictly require it. Some applicants choose notarization deliberately - it can smooth acceptance, and it creates a verified record of the authorization. The only downside is the modest notary fee.

If You Do Need It Notarized

You do not need to leave home. Form 1583 can be notarized in a secure live video session with a remote online notary, and you receive the completed electronic document immediately afterward. The full process, pricing, and FAQ are on the Form 1583 online notarization page, and you can book a session here.

The Roaming Pen LLC is an independent Pennsylvania notary service and is not affiliated with USPS or any mailbox provider. This article is general information, not legal advice.