# DT-CIUS-PT-155

Source: https://xmlvalid.com/rules/DT-CIUS-PT-155

> The Invoice line (BG-25) tax scheme should be coded using a restriction of UN/ECE 5153.

- Level: error
- Rule sets: CIUS-PT rules (Portugal, UBL) 2.1.1
- Context: `//ubl:Invoice/cac:InvoiceLine/cac:Item/cac:ClassifiedTaxCategory/cac:TaxScheme/cbc:ID | //cn:CreditNote/cac:CreditNoteLine/cac:Item/cac:ClassifiedTaxCategory/cac:TaxScheme/cbc:ID`
- Test: `(not(contains(normalize-space(.),' ')) and contains(' AAA AAB AAC AAD AAE AAF AAG AAH AAI AAJ AAK ADD BOL CAP CAR COC CST CUD CVD ENV EXC EXP FET FRE GCN GST ILL IMP IND LAC LCN LDP LOC LST MCA MCD OTH PDB PDC PRF SCN SSS STT SUP SUR SWT TAC TOT TOX TTA VAD VAT ',concat(' ',normalize-space(.),' ')))`

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