---
title: "Regulation | Practical guides for travel agencies"
description: "Entry rules and border systems such as the EES, package travel and data protection: what a small travel agency needs to know, in plain language."
url: "https://viaondo.com/blog/category/regulation"
language: "en"
updated: "2026-10-17"
---

# Regulation

Entry rules and border systems such as the EES, package travel and data protection: what a small travel agency needs to know, in plain language.

- [ETIAS application: what travel agencies should tell clients](https://viaondo.com/blog/etias-application-what-travel-agents-tell-clients): ETIAS applications are not open yet. What agencies should tell clients now, how filing on a client’s behalf works, the EUR 20 fee and the scams to avoid.
- [Passport validity rules for travel: what agencies should check before booking](https://viaondo.com/blog/passport-validity-rules-travel-agents): The passport validity rules travelers hit: the Schengen 3-month and 10-year rule, the six-month rule, and the checks an agency runs before booking a trip.
- [Is it safe to keep client passports in itinerary software? What to ask before you choose](https://viaondo.com/blog/client-passports-itinerary-software-gdpr): What the GDPR asks of a small travel agency and its software vendor, and what nine itinerary tools publish about hosting, DPAs, sub-processors and deletion.
- [EU Entry/Exit System (EES): what travel agencies should tell clients before they fly](https://viaondo.com/blog/entry-exit-system-what-travel-agents-tell-clients): The EU Entry/Exit System has been fully live since 10 April 2026. What travel agencies should tell non-EU clients, who is exempt and what to add to each trip.