1) Newcomer group (around 25 years old)
Instructors of this group are expected to acquire accomplishments as a VT instructor, and to have an ability to implement, operate and manage training facilities.
2) Mid-level group (around 32 years old)
Instructors of this group are expected to be able to implement, operate and manage training facilities while accumulating various experiences, and to provide OJT instructions to junior fellow instructors.
3) Quasi-veteran group (around 40 years old)
Instructors of this group play a central role in promoting the implementation, operation and management of training facilities, and provide OJT instructions to junior fellow instructors.
4) Veteran group (around 52 years old)
Instructors of this group are in charge of management and the development of junior fellow instructors regarding the training instruction/implementation and training management.