Will you please send me a full description of Aerobic & Step Master Instructor< or just a general description of a Master Instructor at something,this is to clarify that some individuals call themselves titles such as' Master Instructors " that they don't actually own. Some companies are assuming that they can create a job title such as ' Master Instructor "so they end up giving titles and names to simple instructors who haven't even passed through a course such as : Step Master or Aerobic Master etc;
I hold European fitness credentials. In fact I’ve taught both in England and used to own a pilates studio in Italy.
If you go to www.erep.eu you will see that there are no instructor with a title such as master this or that will be able to use that credential for entry into the European Registry of Fitness Professionals.
The standard in Europe at present is to determine is the instructor is listed on the registry, has insurance and also to assess what level the instructor is listed on on the registry.
Since you’ve mentioned you are from Holland you might want to visit www.ereps.eu and click the flag for the Netherlands. You will likely get a better answer than we can provide.
I wish you all the best.