# PEPPOL-T19-B21603

Source: https://xmlvalid.com/rules/PEPPOL-T19-B21603

> Document MUST NOT contain elements not part of the data model.

- Level: error
- Rule sets: Peppol Catalogue rules 3.5
- Context: `/ubl:Catalogue/cac:CatalogueLine/cac:Item/cac:ClassifiedTaxCategory/*`
- Test: `false()`

Validate a document against these rules: https://xmlvalid.com/validate