Are there any countries where the certificate may not be accepted?

Both UNI-Prep’s TESOL Certificate and TESOL Diploma programs are recognized internationally as a qualification to work as an English language teacher and teach English/ESL/EFL to students in non-native English speaking countries. We cannot guarantee that every country and every employer will accept our certificates and diplomas because the rules can change anytime and each country and emloyer makes the ultimate decision. However, we have thousands of graduates working abroad in virtually every country and have not experienced any difficulties with our certificates and diplomas being used around the world.

Most English schools want to see that you went through the trouble to take a course and are not picky about where you take it.

I use mine in the US to teach immigrants at a private institute.