At present, the authoritative certificate of Yue Yue's post is the Nurse Professional Qualification Certificate issued by Ministry of Human Resources and Social Security.

The cover is red, blue and green, representing three different levels: advanced (level 3), intermediate (level 4) and elementary (level 5).

The inner page must have photos, basic information, serial number, corresponding level of nurses and teachers, assessment results and so on. Finally, it is the special seal of the local people's social security bureau and the vocational skill appraisal guidance center.