Source and Update Policy

Travel facts change. This page explains how VietnamGuide.net treats sources, uncertainty, and updates across guides.

Source priorities

Official government, airport, transport, tourism, and provider sources are preferred for rules and logistics.
Commercial sources may be used for availability and product context, but they do not replace editorial judgment.
When facts cannot be confirmed, guides should say what travelers need to verify before booking.

Update dates

We aim to change visible update dates only after a meaningful review, source check, recommendation change, or content improvement. Typo-only edits do not need to be presented as fresh travel guidance.