Hello,
I am a vaccinated/boosted citizen of the United States. I will be entering the Netherlands by Thalys rail/train from Belgium after initially flying into Netherlands and clearing with a negative COVID test. I would spend about four days in Belgium before returning to the Netherlands. From reading the government NL site, it would appear that, upon my second entry to the Netherlands (from Belgium), because I am vaccinated and entering the Netherlands from an EU country, I would not need to show a negative COVID test and instead just show proof of vaccination. I believe I would be able to use my CDC card as proof for vaccination.
Is my understanding correct? Or would I still need a negative COVID test to enter the Netherlands by train from Belgium?
Thank you!