The substance, TPO, is still permitted in the United States.
A list of "safe" destinations is due to be signed off this week, although there's no confirmation as to when these changes will be implemented.
The United Kingdom has finally cut its ties with the European Union, almost a year after its formal departure from the 27-nation bloc.
US tourists will be excluded from visiting the European Union after the bloc finalized its list of 15 safe countries for travel to member states on Tuesday.
European Union regulators have hit Google with a 1.49 billion euro ($1.68 billion) fine for abusing its dominant role in online advertising.
ETIAS approval is expected to take just minutes for most travelers and cost less than $8.