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NFE-590

Rejeição: Informado CST para emissor do Simples Nacional (CRT=1 ou 4) [nItem: …] (CST …).

In English An issuer in the Simples Nacional (CRT 1 or 4) gives a CST; it takes a CSOSN, except the fuel CSTs 02, 15, 53 and 61.

error: the document is invalid

What the rule checks

As the rule set's publisher wrote it. The rule runs on every element the context matches, and fails where the test is false; the validator reports the line of that element.

SEFAZ authorisation rules of NF-e 4.00 MOC 7.0 Anexo I, NTs up to 2026.010
Context
nfe:infNFe/nfe:det
Test
not($crt = ('1', '4')) or not($cst) or $cst = ('02', '15', '53', '61')

Checked with NF-e 4.00, NF-e 4.00 with authorisation protocol