log off on the official website. The account of catering food safety training and assessment system was cancelled on the official website.

1. First of all, at the end of the assessment, log off on the official website.

2. Secondly, log on to the official website and click "Student Training Management" in the category of "Business Information Management" on the left to enter the interface of student training management.

3. finally, click < b > deregistered students to view the list of deregistered students and modify the status of deregistered students.