The majority of operators we see today possess very little in the way of certification. There are three levels of certification in thermography, levels 1-2 and 3.
Certifying in any level of thermography is an arduous task and costs money. With all levels of certification, the student must attend a 40 hour week long class which typically ranges anywhere between $200 to $1900 and must pass a comprehensive examination based on the principals of the science of infrared thermography. It is not a point n click class by any measure. Certification is for professional thermographers only, all others are simply operators or users of an infrared camera.