mandatory

Required by law or rules; compulsory; obligatory.

• mandate/ˈmændeɪt/(n/v)命令；授权
• mandatorily/ˈmændətərɪlɪ/(adv)强制地

• mandatory training
• mandatory reporting
• mandatory requirement
• legally mandatory
• mandatory attendance
• mandatory minimum

1. 1.All new employees must complete mandatory training in data protection before they are given system access.
2. 2.In many countries, reporting suspected child abuse is mandatory for healthcare and education professionals.

• compulsory/kəmˈpʌlsərɪ/— required by rules
• obligatory/əˈblɪɡətərɪ/— imposed as duty
• required/rɪˈkwaɪəd/— necessary

from Latin "mandatum" = command, from "mandare" (to give into one's hands)