Are you referring to specific IDPA or IPSC terminology?
Youq question does not make sense to me. It is like asking if anyone is a certified driving instructor. Certified by whom? To certify what?
Pretty much anyone can hang out a shingle and call themselves a certified firearms instructor.
from what I see, getting any type of certification would be beneficial to me at most if i decided to do a side-job hobby. While I enjoy shooting, tactics training and everything else related to firearms (yes, even cleaning) It's not something I would pick as a full time career. The Insurance factor is probably going to be the biggest deal breaker. The idea of needing coverage for everything but wiping your own ass is very repulsive to me. I'm all for safety especially and believe that accidents are the result of negligence, stupidity improperly maintained equipment....none of which I intend to associate with.
You need coverage because of the millions of dollars of liability should someone be injured in your class. The insurance also covers civil liability should you teach something to someone, they do it, and they end up suing you as a result. Insurance is there for a reason, and risking you and your families entire financial future on a member of the general public is down right stupid. Trust me ... the insurance isn't enough.