ADVEX is licensed by the Office of the Private Education Commission, Ministry of Education, Thailand, and is authorised to accept international students. Learners enrolling in ADVEX's OPEC-approved programmes may apply for a Non-Immigrant ED Visa to stay legally in Thailand for study purposes. Each OPEC-approved programme is 12 months. Learners who study several programmes in a row (up to four programmes) may stay for up to four years in total, at the discretion of the Immigration Bureau.
International students enrolling in a full-time academic programme, professional education programme or seminar course in Thailand must apply for a Non-Immigrant ED Visa before travelling to Thailand.

Apply for the Non-Immigrant ED Visa at the Royal Thai Embassy or Consulate in your home country before you travel. You will need:
Some embassies ask for more documents. All documents must be in English or Thai, or come with an official translation.
The ED Visa is valid for 90 days from the date of issue, and you are given a stay of up to 90 days when you arrive.
Your total stay can be extended up to the length of your OPEC-approved programme (12 months), but each extension covers 90 days. Before each 90-day period ends, go to the Immigration Bureau to extend again, until the end of your programme. ADVEX issues the supporting documents for each extension.
If you leave Thailand without a re-entry permit (TM.8), your ED Visa is cancelled and you must apply again from outside Thailand. A re-entry permit keeps your current permission to stay; it does not add days to it.
Thai Immigration requires everyone on a long-stay visa to report their address every 90 days. ADVEX prepares the documents; you make the report yourself at the Immigration Bureau.
Students from some countries may need to apply in person, provide more documents, or pass a security or background check.