Clause 71 of the Nationality and Borders bill (as introduced to the House of Lords) amends the Immigration Act 1971 to introduce Electronic Travel Authorisation (ETA). This provides for a pre-entry clearance system, which requires anyone who does not need a visa, entry clearance or other specified immigration status, to obtain authorisation before travelling to the UK. This includes on journeys within the Common Travel Area (CTA).
CAJ has prepared a briefing note on the potential impact of putting this system in place.