# NFE-471

Source: https://xmlvalid.com/rules/NFE-471

> Rejeição: Informado NCM=00 indevidamente [nItem: …].

- 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:det`
- Test: `$prod/nfe:NCM != '00' or $fin = '3' or nfe:imposto/nfe:ISSQN`

In English: NCM 00 is only for services (ISSQN) and adjustment NF-e (finNFe 3).

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