How many years is the validity of the approval number of the preparation of medical institutions

3 years. According to the query "medical institutions preparation registration management methods (for trial implementation)" shows that the validity of medical institutions preparation approval number is 3 years. The expiration of the validity of the need to continue to formulate, the applicant should be in accordance with the original application 3 months before the expiration of the formulation of the original application for re-registration of the application process, the submission of relevant information.