C.09.01

On a VALIDITY CONDITION. ToDate must not be later than FromDate on any date range

20NeTExstructuredraftDATA4PT NeTEx Validation Rules Overview

Notes

Check that from date is before to date in any VALIDITY CONDITION (including. VALID BETWEEN elements.

Details

• Result: Error
• Scope: area: Common Content, aspect: Date ranges, applies_to: All usages
• Mechanism: code

Related

• Source: DATA4PT NeTEx Validation Rules Overview

Rule metadata

Code	C.09.01
Standard	NeTEx
Source	DATA4PT NeTEx Validation Rules Overview
Severity	20
Category	structure
Maturity	draft
Tags	data4pt, netex, structure
Retrieved	2026-07-15