When can you use a post office box instead of a street address?

**** The information written here is not legal advice and the author of this blog is not your lawyer.  These posts merely contain ideas to help you plan and organize your legal research and identify potentially helpful sources of law. ****

In general, a post office box can be used instead of a street address when establishing a place for people to send mail, but not when someone needs to identify himself to the government. For example, street address is normally required for obtaining a government-issued photo I.D., registering a car, and applying for jobs.

Here is one handy work-around that works when the post office has competition from another nearby delivery service:

Post office box customers can use the post office’s street address as their street address and identify their P.O. Box number just within the zip code of that street address. The rule explaining this is at Section 4.5.4 of the Domestic Mail Manual, under the topic of “competitive P.O. Box services.”  http://pe.usps.gov/text/dmm300/508.htm#1141179 The phrase “competitive P.O. Box services” means that the post office in that neighborhood has to compete with a UPS store or a similar private business that offers package delivery services. So, if somebody has post office box #1234, and his post office is located at 100 Main St. in Long Beach, California, he can tell everyone that his street address is 100 Main Street, Long Beach, California, 90808-1234.

Applying for a job doesn’t sound like communicating with the government, but the communication is indirect; employers are required to make payments to the Social Security Administration and the Internal Revenue Service on behalf of employees. They have to identify each employee by name, social security number, and address in order to make those payments.

When registering to vote, it is permissible for a homeless person to give the street address of a relative or an agency he or she is involved with. But it is also necessary to identify where you reside or expect to continue residing (name the park, bridge, or other location specifically) because the voting system is intended to appoint representatives for populations according to their geographic designations. The National Coalition for the Homeless has a full explanation, resources for registering or even coordinating a voter registration event, and advocacy materials available at  http://nationalhomeless.org/campaigns/voting/.

There is not merely one law stating that people have to give the government their street address. Instead, there are minute regulations, many separate hard-to-find requirements by government agencies, declaring when and where addresses are to be used in each agency’s conduct of business.

Criminal law requirements for homeless contact information are generally stricter than the procedures in the social services codes. Probation rules and sex offender registries, for example, require that offenders provide a street address where they can be located if an officer comes looking for them; living on the street is simply not an option. A homeless shelter or halfway house address may be used if the offender truly resides there, but the probation and sex offender registry rules additionally require that offenders report to an agent on a regular basis and immediately notify police authorities of any change in their whereabouts.[i]

The agencies involved with housing and health and income services, for example HUD (Housing and Urban Development) and HHS (Health and Human Services), which routinely interact with the homeless population have ways for people to access their services by communicating through channels other than mail or by having the mail sent to places where clients do not live, but can at least check-in.


[i] Sample sex offender registry statutes show the variety of ways states verify street addresses:
California “Beginning on or before the 30th day following initial registration upon release, a transient must re-register no less than once every 30 days thereafter.” Cal. Penal Code §290(c)(1).

Connecticut “the Department of Public Safety shall verify the address of each registrant by mailing a non-forwardable verification form to the registrant at the registrant’s last reported address. Such form shall require the registrant to sign a statement that the registrant continues to reside at the registrant’s last reported address and return the form by mail by a date which is ten days after the date such form was mailed to the registrant. The form shall contain a statement that failure to return the form or providing false information is a violation of section 54-251, 54-252, 54-253 or 54-254, as the case may be. Each person required to register under section 54-251, 54-252, 54-253 or 54-254 shall have such person’s address verified in such manner every ninety days after such person’s initial registration date.” Ct. Gen. Stat. Ann. §54-257(c).

District of Columbia “The procedures and requirements [of the offender registration agency] may include….(1) Verify address information or other information at least annually, or at more frequent intervals as specified by the Agency;(2) Return address verification forms;(3) Appear in person for purposes of verification;(4) Cooperate in the taking of fingerprints and photographs, as part of the verification process; and (5) Update any information that has changed since any preceding registration or verification as part of the verification process.” DC Code §22-4008(a).

Florida “Each time a sexual offender’s driver’s license or identification card is subject to renewal, and, without regard to the status of the offender’s driver’s license or identification card, within 48 hours after any change in the offender’s permanent or temporary residence or change in the offender’s name by reason of marriage or other legal process, the offender shall report in person to a driver’s license office”…. “A sexual offender who vacates a permanent residence and fails to establish or maintain another permanent or temporary residence shall, within 48 hours after vacating the permanent residence, report in person to the sheriff’s office of the county in which he or she is located.” Fl. Stat. Ann. §943.0435 (4)(a)&(b).