This is from the CIBT website
The European Travel Information and Authorization System (ETIAS) is an electronic pre-screening tool for entry into the 27 countries in the Schengen zone from the 60+ countries that currently enjoy visa-free travel into the zone (Schengen covers much of the European Union). But since its announcement in 2018, ETIAS has been plagued by delays. While ETIAS was supposed to go into effect in November 2023, its formal roll-out has been pushed back again to an unspecified date in 2024