
Mandatory
Beyond Laws
Mandatory isn't used only for laws but for rules in organizations, schools, or clubs.
Attendance is mandatory for all members at the club meetings.
Safety Related
'Mandatory' is often used in safety contexts to mean 'necessary for safety'.
It's mandatory to wash your hands before serving food.
Not Optional
When something is mandatory, you cannot choose whether to follow it or not.
Completing this course is mandatory for graduation.