Documents proving actual WORK EXPERIENCE. Moving up to Tokutei 2 requires enough years of experience (usually 2 years; some fields require a leadership/supervisory position).
What it must show
States dates + job duties + position
Certified by the company
Where to get it
Your current company (and/or a former company where you built experience).
How to get it
Ask the company to issue an experience certificate
Enter correct dates matching your contract
Notes
Required years & position DIFFER by field — check your field's conditions.
