Legal basis: Article 20 of the Administrative Measures for Occupational Health Examination, an occupational health examination institution shall establish occupational health examination files. The archive of occupational health examination shall be kept for no less than 15 years from the date of the last occupational health examination of workers.
The occupational health examination archives shall include the following materials:
(1) Entrustment agreement for occupational health examination;
(2) Relevant information provided by the Employer;
(three) issued by the occupational health examination results summary report and notification materials;
(4) Other relevant materials.