25 credits. The score of continuing education in Taian health system requires 25 credits. The continuing education of health system in Tai 'an implements the credit system, and the credits are divided into two categories: first-class credits and second-class credits. The subjects of continuing medical education participate in continuing medical education activities every year and get no less than 25 credits, including 5- 10 credits for Class I and 15-20 credits for Class II. The subjects of continuing medical education in medical and health units, tertiary hospitals and primary prevention and health care institutions of all provinces, autonomous regions and municipalities directly under the Central Government must obtain 10 credits for participating in national continuing medical education projects within five years. These two credits can't replace each other.