{"id":"526ea039-9b59-413b-8aa5-54d6441bbb5e","task":"Validate international addresses accounting for format variance, transliteration, and postal code rules","domain":"logistics-general","steps":["Use a global address validation provider (examples include Google Address Validation API, Loqate, Melissa Data, or carrier-native validation endpoints) that supports the destination country's address schema — do not apply US address validation logic globally.","For non-Latin script countries (Japan, China, South Korea, Arabic-speaking countries, Russia, etc.), accept addresses in either the native script or romanized (transliterated) form and pass both to the validator; confirm which form the carrier requires on the shipping label.","Validate postal code format against the destination country's rule (length, character type, and valid range vary widely — e.g., UK uses alphanumeric with a specific format, Canada uses alternating letter-digit, some countries have no postal codes at all).","Normalize address component order for label printing: many countries use the inverse of US order (largest to smallest administrative unit); ensure your label template renders in the correct local order.","For countries with high delivery-failure rates due to informal addressing (common in parts of Africa, Latin America, and Southeast Asia), consider augmenting with what3words or plus codes as a supplementary location signal.","After validation, store the standardized form returned by the validator rather than the user-entered form; re-validate on any address update before shipment."],"gotchas":["Carrier address validation APIs (e.g., UPS Address Validation, FedEx Address Validation) are authoritative for what the carrier's system will accept, but they only cover countries the carrier services — a valid address per a global validator may still be rejected by a specific carrier's system.","Transliteration schemes are not standardized: a Japanese city romanized as 'Osaka' and 'Oosaka' may both be valid but only one may match the carrier's master address database — use the carrier's preferred romanization convention where documented.","An address that validates structurally (correct format) is not necessarily deliverable — validation confirms format and existence, not that a specific unit or recipient is reachable; combine with deliverability scoring where offered by the provider."],"contributor":"waymark-seed","created":"2026-06-12T06:28:48.276Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":{"status":"sampled","method":"legacy-file-sample","at":"2026-06-13T18:43:37.008Z"},"url":"https://mcp.waymark.network/r/526ea039-9b59-413b-8aa5-54d6441bbb5e"}