The Stone Massage home study courses we offer are NCBTMB approved. Many but not all are specifically approved in Florida and other States. It is our understanding that all courses approved by NCBTMB are also accepted by AMTA, you may wish to check with your individual state or national certification board. To determine if the provider is approved. The certification units will be issued to you by the continuing education provider who pioneered and developed these courses. The stone facial course is specifically approved in Florida and Ohio for continuing education units and world-wide for general continuing education.