1. After obtaining the primary vocational qualification certificate of this occupation, he has been engaged in this occupation for more than 3 years continuously, and has reached the required standard hours after the formal training of this occupation intermediate, and obtained the graduation (completion) certificate.
2. Having worked in this occupation for more than 5 years after obtaining the primary vocational qualification certificate of this occupation.
3. Obtain the vocational graduation certificate of the secondary vocational school which is audited by the administrative department of labor and social security and aims at cultivating intermediate skills.
You can sign up for the exam at the labor and social security department in Shenyang, or attend the training at the labor training institution designated by them, and the chances of passing will be higher.