Standard Values

Standard values and code lists (or controlled vocabulary) establish consistent, value-oriented definitions that can be shared across shared domains. We utilize the following, well-known standards.

• BCP 47 — Language Tag
• IANA Time Zone
• ISO 639 — Language
• ISO 3166 — Country, Subdivision
• ISO 4217 — Currency
• ISO 8601 — Date, Time, Interval
• UN/CEFACT Recommendation No. 20 — Unit of Measure
• W3C Accessibility Discoverability