Sempai - Assistant Instructor
All students with Junior Assistant Instructor, Assistant
Instructor or Junior Instructor Certification
Sensei - Instructor, Black Belt Level
All students with Sensior Instructor Certification
Renshi - Highly Respected Martial Artist
4th Degree Black Belt with Senior Instructor or Master
Instructor Certification
Master - Master of Martial Arts
5th or 6th Degree Black Belt with Master Instructor
Certification
Shihan - The Master of Highest Master
Founder of system (Shihan Douglas J. Welsh) and any
other Black Belts
7th Dan and above with Master Instructor Certification