Thai Massage along with massage in general is regulated in many countries. That means it is not enough to know how to do massage - you need a certificate to prove it. Otherwise you cannot legally practice.
There are several kinds of certificates which serve several purposes. Here at Thai Healing Massage Academy we issue two kinds of certificates. - the "International Certificate" and the "CE Certificate". We have lots of information about the certification process. I suggest you read this article which will give you an excellent overview of the program:
To find out which courses are eligible for certification and how many CEUs you can get for them, check out this page: