What USPS Form 1583 is
PS Form 1583 is an official U.S. Postal Service form connected to delivery of mail through an agent. It is commonly associated with commercial mail receiving agencies, private mailbox services, and virtual-mailbox providers.
Who generally needs it
- Individuals opening a private mailbox or virtual-mailbox account.
- Adults using a CMRA address for personal mail.
- Businesses or organizations authorizing a mailbox provider to receive mail.
- Existing customers whose provider requires an updated form or supporting documents.
Identification and supporting documents
The current USPS form and the mailbox provider may require specific identity and address documents. Requirements can vary by provider and by the current USPS instructions. Confirm the accepted documents, copy format, and submission process before the notary session.
Online notarization
SafeNotarize can notarize a completed Form 1583 online when the signer, document, notarial act, and receiving process are legally and operationally eligible. Leave the signature blank if the signer must sign or acknowledge it during the live session.
Confirm acceptance before relying on the form
The mailbox provider or receiving organization decides whether it will accept the form, the identification package, and the method of notarization. SafeNotarize does not guarantee acceptance by USPS, a CMRA, a virtual-mailbox provider, or another receiving organization.
Review the official USPS forms resource and confirm the provider’s current instructions before continuing.
When is notarization commonly requested?
The mailbox provider and current USPS instructions determine whether a notarized signature, online notarial act, identification copies, or additional records are accepted. Confirm the provider’s exact process before signing or uploading the form.
Common mistakes to avoid
- Using an old form or a copy not accepted by the mailbox provider.
- Choosing identification documents without checking current provider instructions.
- Signing too early when the signature must be witnessed or acknowledged.
- Assuming notarization alone guarantees approval by USPS or the mailbox provider.
Compare these documents
These documents can appear in similar situations, but they serve different purposes. Confirm which one the receiving organization wants.
USPS Form 1583
The official mail-agent authorization form used with a CMRA or mailbox provider.
Proof of Residency Document
A separate letter or affidavit that may support an address requirement but does not replace Form 1583.
Read the related guideFrequently asked questions
Can my virtual-mailbox provider require its own process?
Yes. The provider may set submission, identification, copy, and notarization procedures consistent with its current requirements.
Should I use the newest USPS Form 1583?
Confirm the current form and instructions with USPS and the mailbox provider before completing or signing it.
Does online notarization guarantee mailbox approval?
No. The mailbox provider or receiving organization decides whether it accepts the form, supporting documents, and method of notarization.