# aligned-ibrp-065

Source: https://xmlvalid.com/rules/aligned-ibrp-065

> Payment reference (ibt-083) MUST occur maximum once.

- Level: error
- Rule sets: PINT A-NZ rules (Australia and New Zealand) 1.1.3
- Context: `cac:PaymentMeans`
- Test: `(count(cbc:PaymentID) <= 1)`

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