man·da·to·ry 
/ˈmændəˌtori, Brit ˈmændətri/ adjective
/ˈmændəˌtori, Brit ˈmændətri/ adjective : required by a law or rule
▪ This meeting is mandatory for all employees. [=all employees must go to this meeting] ▪ The mandatory fine for littering is $200. [=everyone caught littering must pay $200] ▪ a mandatory retirement age [=an age at which workers are required to retire] ▪ a mandatory drug test
▪ This meeting is mandatory for all employees. [=all employees must go to this meeting] ▪ The mandatory fine for littering is $200. [=everyone caught littering must pay $200] ▪ a mandatory retirement age [=an age at which workers are required to retire] ▪ a mandatory drug test
