READER INFORMATION

Contact & corrections

A public editorial mailbox has not been established. This page does not accept submissions, and there is no contact form or chat service.

Check a source or prepare a correction

Each article links to its original evidence. For a possible error, record the article address, the exact passage, the source document and the part of that source that supports a correction. Include the relevant material, equipment or jurisdiction and the source date.

For questions about a specific machine or reporting obligation, contact the manufacturer or official scheme through the contact details on its own website. This publication cannot confirm a supplier’s specifications or resolve an individual compliance case.

Our editorial policy explains how sources and revisions are handled.