spec 1 linked patterns checked
USPS Publication 28: Postal Addressing Standards
Documents U.S. postal address standards, delivery address line structure, street suffixes, secondary unit designators, compression guidance, and ZIP-oriented mailing address conventions.
Read with a purpose
What this source can teach
Use this source to check a technical or accessibility requirement against its exact wording and scope.
- Start with the original. Open the source and find the guidance or example relevant to your task.
- Trace the connection. Use the claim notes below to see how this site applies the source to specific patterns.
- Check the setting. Compare the source's platform, people, and constraints with your own decision.
Pattern Decisions This Source Supports
| Pattern | Supported decision | Required contract | Claim note |
|---|---|---|---|
| Address entry | Choose address entry when the product needs a complete postal, delivery, billing, contact, or official address rather than one short freeform value. | Users can start with lookup or choose manual entry before providing a postal code. | USPS Publication 28 supports delivery address structure, secondary unit designators, street suffix conventions, and U.S. postal standards. |
Comparisons supported by this source
- Address entry vs text input vs autocomplete vs dependent fields
USPS Publication 28 supports delivery-oriented address parts, secondary unit designators, and ZIP-related mailing conventions.
Evidence Role
This source is treated as spec evidence. Its value comes from the specific claims and setting described above.
Publisher: United States Postal Service. Last checked: .