# NFE-522

Source: https://xmlvalid.com/rules/NFE-522

> Rejeição: Chave de Acesso referenciada com UF inválida [nOcor: …] (…).

- 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/nfe:ide/nfe:NFref/nfe:refNFe`
- Test: `br:keyuf($k)`

> Rejeição: Chave de Acesso referenciada com UF inválida [nOcor: …] (CT-e, …).

- 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/nfe:ide/nfe:NFref/nfe:refCTe`
- Test: `br:keyuf($k)`

In English: A referenced key starts with a code that is no Brazilian state.

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