# NFE-316

Source: https://xmlvalid.com/rules/NFE-316

> Rejeição: Chave de Acesso referenciada com a mesma Chave de Acesso da Nota Fiscal atual [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: `concat('NFe', $k) != string(ancestor::nfe:infNFe/@Id)`

In English: The NF-e references its own access key.

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