# NFE-1212

Source: https://xmlvalid.com/rules/NFE-1212

> Rejeição: DFe referenciado em operação com ente governamental 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:gCompraGov/nfe:refDFeAnt`
- Test: `concat('NFe', $k) != string(ancestor::nfe:infNFe/@Id)`

In English: A government purchase references its own access key as previous document.

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