# PEPPOL-EN16931-CL006

> Invoice period description code must be according to UNCL 2005 D.16B.

Checked against Peppol BIS Billing 3.0 2026.5

Canonical: https://einvoicecheck.eu/rules/peppol-en16931-cl006

## Official rule text

Invoice period description code must be according to UNCL 2005 D.16B.