# NFE-401

Source: https://xmlvalid.com/rules/NFE-401

> Rejeição: CPF do emitente inválido (…).

- Level: error
- Rule sets: SEFAZ authorisation rules of NF-e 4.00 MOC 7.0 Anexo I, NTs up to 2026.010
- Context: `nfe:infNFe`
- Test: `not($emit/nfe:CPF) or br:cpf($emit/nfe:CPF)`

In English: The issuer's CPF is zeros, one digit repeated or has wrong check digits.

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