Virtual Mailbox & Form 1583 Rules in Connecticut
A virtual mailbox or Commercial Mail Receiving Agency (CMRA) in Connecticut cannot serve as your LLC's registered agent, though it may generally be used as a business address—verify current requirements with the Connecticut Secretary of State. When opening a virtual mailbox account, you will need to complete USPS Form 1583. This form typically requires notarization, though the U.S. Postal Service permits either a notary public's certification or the CMRA owner's witness signature in some cases.
Connecticut authorizes remote-ink notarization for Form 1583, which involves an audiovisual component with a wet signature returned by mail—this is not the same as full online notarization. You may also notarize in person. Because notarization requirements and remote options can change, confirm current procedures on the official Connecticut Secretary of State website before proceeding. This overview is regulatory information only and should not be construed as legal advice.
How a virtual mailbox works
A virtual mailbox is a real street address at a commercial mail-receiving agency (CMRA) that scans your mail; opening one means filing USPS PS Form 1583, witnessed by a notary or the provider, with two IDs.
| Detail | As the rule stands |
|---|---|
| Can a virtual mailbox be your registered agent? | No (a PMB cannot be your registered agent) |
| Can it be your LLC business address? | Generally yes — verify |
| Online notarization (RON) for Form 1583 | Remote-ink notarization only |
| Form 1583 witnessing | Notary or CMRA-owner witness (in person or by A/V) |
| PMB designator (address line) | 'PMB <number>' or '# <number>' (USPS DMM 508.1.4) |
| Governing citation | Conn. Public Act 22-26; USPS DMM 508.1.8 |
Opening any virtual mailbox means filing USPS PS Form 1583. The form must be witnessed — by a notary or by the mailbox provider (the CMRA owner/manager), in person or by real-time audio-video under the 2024 CMRA Clarification rule — and you supply two acceptable IDs. It is usually notarized, and the notarization can be done online via remote online notarization (RON) wherever the state allows it.
Confirm before you file. This is informational only, not legal advice. The official state Secretary of State / notary page and USPS are the authoritative sources.
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Compiled from the USPS federal baseline (DMM 508 / 39 CFR) and the state notary/RON statute, and verified June 2026. Always confirm the current rule on the official state Secretary of State / notary page before you rely on it — RON law is still moving. How we compile this. Informational only, not legal advice.