U.K. has announced the biggest shake-up of its border force rules, as all passengers who do not need visa approval are required to apply for digital travel authorization before entering the country, CNBC reported.

People holding passports that currently arrive in the country without pre-vetting — including European Union, U.S., Canadian, Japanese, Australian, New Zealand and other nationals — will all need to apply and pay for Electronic Travel Authorisation (ETA) by the end of 2024.

However, British and Irish nationals and people with U.K. settled status will be exempt from the scheme.

The government says the scheme will strengthen border security and is comparable to that used by countries such as the U.S. and Canada. The U.K. has previously said that under current rules it does not have wholly accurate data on the number of people entering and leaving the country.

The cost of the ETA has not been confirmed but it is expected to be in a similar range to those schemes. The U.S. Electronic System for Travel Authorization costs $21.

Travelers from some countries are set to gain smoother access to the U.K. The scheme will launch for Qatari citizens in November where it will replace the Electronic Visa Waiver Scheme, and expand to Jordanian citizens in February 2024.

However, it will mark a significant change for many frequent travelers from Europe and elsewhere who currently only need to show a passport on arrival.

Applications will be made online or via an app. Those with biometric passports will scan them using their phone, and may also need to take a “dynamic selfie,” involving movement, to submit an image of their face.

They will be automatically processed, with a decision made within three days. Some applications will be processed more quickly. If approved, the Electronic Travel Authorisation (ETA) will be valid for multiple visits over two years. Travelers with an ETA will continue to be able to use e-passport gates on arrival.

Anyone arriving at the U.K. border by air or rail without an Electronic Travel Authorisation (ETA) will be turned away, including if they arrive via Ireland but are not Irish or British citizens.

The government has previously said it expects to handle 30 million ETA applications a year.

It is understood the U.K. has ambitions to eventually require all travelers to submit fingerprint biometrics ahead of travel and is working on a scheme that would see this submitted by smartphone.