As with any other profession, you should expect that your technician regularly attends continuing education opportunities, is a member of leading industry professional societies, and has been independently tested by an appropriate examining board. In addition to my certificate from my basic training course, I can show my clients evidence that I have done all of the above. Whatever technician you select should be able to do the same thing. Permanent makeup, which goes by many names including micropigmentation, intradermal cosmetics, and permanent cosmetics, is a cosmetic tattooing procedure. But it is untrue to say that permanent makeup is not tattooing.
Any time color is implanted in the skin it is technically a tattoo.
The machinery used for the procedure may be standard tattooing equipment or machines designed exclusively for cosmetic procedures. Both are capable of putting color into the skin, and the skill of the operator is more important than the type of machine used, with one important exception. Everyone knows the importance of using new, sterile needles for each client to avoid infections, and the transmission of blood borne diseases. But the needles which implant the pigment travel through a tube or chamber which holds the pigment used for the procedure. If the technician doesn't know what you are talking about, or won't give you a straight answer, find another technician.