Bangkok, May 5 -- Thai authorities have clarified information about the new Digital Arrival Card (TDAC) for foreign visitors to the Southeast Asian nation, which took effect on May 1.

The TDAC system replaces the paper-based TM6 form that travelers used to fill out. All foreign nationals entering Thailand by air, sea or land must fill out their details at the official TDAC website, after which they will receive an email that they can show on arrival in the country.

The Thai Immigration Bureau also clarified confusion about the deadline for applying, saying that applications can be submitted within three days prior to arrival, not "at least three days before arrival" as some local media previously reported.

In addition, Thai authorities...