C.02.04

All references should include an explicit version on the reference.

30NeTExintegritydraftDATA4PT NeTEx Validation Rules Overview

Notes

All references (i.e. xxxRef elements) should have either a version="xxx" attribute or a versionRef-"xxx" explicitly declared. A versionRef "EXTERNAL" can be used for a dummy value if necessary

Details

• Result: Warning
• Scope: area: Common, aspect: references, applies_to: All usages
• Mechanism: code

Related

• Source: DATA4PT NeTEx Validation Rules Overview

Rule metadata

Code	C.02.04
Standard	NeTEx
Source	DATA4PT NeTEx Validation Rules Overview
Severity	30
Category	integrity
Maturity	draft
Tags	data4pt, netex, integrity
Retrieved	2026-07-15