Related majors. Take crc as an example, there is no special qualification certificate, and the promotion assessment indicators only require professional background, pharmacy, clinical, nursing and other related majors. When entering the job and undertaking projects, crc's resume and qualifications will be reviewed, and relevant gcp training is needed to obtain gcp certificates. However, companies with formal gcp certificates will arrange special training and examinations after joining the company, and will issue gcp certificates after passing them.