does kickboxing instructors need a certification?

I agree with Joanne. I don’t have a specific certification in Kickboxing but I have experience with boxing, I currently take 2 forms of martial arts, and I teach a non-contact cardio kickboxing class (which required a certification) called Turbo Kick. If the gym wanted to me to teach just kickboxing (because we have that as well), then I would be well qualified.