Online Notarization for Virtual Mailbox & CMRA Operators

The Two Verification Lanes Under Current USPS Rules

USPS defines a CMRA in Domestic Mail Manual 508 as "a business that, in whole or in part, accepts the delivery of U.S. Mail on behalf of another person or entity as a business service." The current PS Form 1583 (June 2024 edition) gives that business exactly two lanes for verifying the applicant's signature:

"The applicant must sign or confirm their signature in the physical or virtual presence (in real-time audio and video) of the Agent or the Agent's authorized employee or acknowledge their signature in the physical or virtual presence (in real-time audio and video) of a notary public commissioned in a United States state, territory, possession, or the District of Columbia." — PS Form 1583, June 2024, page 2 (accessed July 16, 2026)

Those two lanes are different acts, and the difference matters operationally. Identity verification by the CMRA means your own staff witness the customer's signature — in person or over your own real-time audio-video process — and sign box 14a. Notarization means the customer completes an acknowledgment before a commissioned notary, who completes the notary box on page 2 of the form. The form's footnote 15 confirms the split: the agent or an authorized employee may sign 14a, and "if the Notary Public box at the bottom of page 2 has a seal, the Notary Public completes the box." One lane or the other — not both.

Note what the notarized lane does not remove: per DMM 508, the CMRA must still "enter the information provided on each PS Form 1583 and upload a clear and legible copy of each identification document into the USPS CMRA Customer Registration Database," and keep a copy of the completed form at the business location, available to the postmaster and the Postal Inspection Service. Notarization takes the live verification encounter off your plate — the recordkeeping stays yours. That trade is exactly why operators who don't want to build and staff their own audio-video verification program route remote signups to a notary instead.

This page covers the operator side. When customers ask how their end works — the ID rules, the acknowledgment, what to bring to the session — send them our step-by-step guide to getting PS Form 1583 notarized. And when they ask whether the Post Office can just do it at the counter: USPS locations generally don't offer notary services — the form is theirs, the notarization isn't.

International Customers: the Signups You Can't Verify Yourself

Foreign founders opening a U.S. business address and expats keeping a U.S. mailbox are the customers a CMRA is least equipped to verify in-house — and the form anticipates them. The June 2024 PS Form 1583 lists "Passport" among the acceptable photo ID types (item 8e), provides Country fields for the applicant's home address, and its footnote 8 states that a business's place of registration is "the county and state (if domestic), or the country (if foreign)." The two-ID rule still applies: one government-issued photo ID, plus a second document confirming the home address listed on the form.

On the notarization side, an online session reaches those customers where they are. The notary stays physically inside their commissioning U.S. state; in most states the signer can be located outside the state — or in a different country. A few states add conditions for signers located abroad (Washington, Pennsylvania, and Idaho require the record to have a nexus with the United States, and the act must not be prohibited where the signer is located). Our guide to notarizing a document from overseas walks through those conditions, the ID and connection requirements, and why U.S.-notary availability follows U.S. hours — useful reading for your support team before you point international customers at the session link.

The practical takeaway for operators: an international signup that would otherwise stall — no U.S. driver's license, no store to visit, twelve time zones out — becomes the same staff-initiated workflow as a domestic one. The customer completes the notarization, and your team receives the same tamper-evident PDF and digital audit trail for the file.