the process of earning a certificate or the act of providing a certificate (= an official document that proves something has happened or been done) again, for the second, third, etc. time

They provide in-service training and annual recertification for many employees. 他们为许多员工提供在职培训和年度重新认证。

Schools must apply for recertification at regular intervals. 学校必须定期申请重新认证。

All employees take yearly recertifications to stay employed. 所有员工每年都要参加重新认证才能继续工作。