# ibr-003

Source: https://xmlvalid.com/rules/ibr-003

> An Invoice MUST have an Invoice issue date (ibt-002).

- Level: error
- Rule sets: PINT Billing rules 1.1.3, PINT Billing rules (as shipped with PINT AE) 1.0.4
- Context: `/ubl:Invoice | /cn:CreditNote`
- Test: `normalize-space(cbc:IssueDate) !=''`

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