1. Attend auditor training. You need to attend the on-site auditor training course organized by the training institution recognized by China Certification and Accreditation Association (CCAA), and obtain the training certificate after passing the training examination.

2. Take the national written test. With ID card and training certificate, take the examination arranged by CCAA, and pass the examination (passing 70 points) to obtain the qualification of registered auditor.

3. Apply for registration as an intern auditor. After passing the national CCAA examination and passing the examination, you can apply for registration as an intern auditor. However, you need to contact the certification body before applying, and 1 person can only call 1 institution.

After passing the internship, you can become a formal auditor.

Extended data:

To apply for becoming a registered auditor, there are certain conditions:

1. Education experience: College degree or above recognized by the national education department or equivalent.

2. Work experience: at least 4 years working experience in technical or management positions. In fact, you can consider taking the exam after three years.

3. Quality work experience: at least 2 years working experience in quality, environment, health and safety (information security, energy management, food management, and sometimes related professional education background is needed).

References:

Baidu Encyclopedia-External Auditor