The health certificate is valid for one year, and the health knowledge training certificate is valid for two years. You need to apply again after one year. If you change companies within one year, you need to change and you need to pay a fee. Of course, if you don't find it, you can not change it first.
The health certificate stipulates that the holder shall have a health examination once a year, and the personnel are mobile, while the examination of the health certificate is relatively static. Some licensees are infected with diseases after the exam, but they still hold qualified health certificates before the next exam. Many diseases are hidden and latent, and carriers themselves do not feel symptoms; Some people are afraid that failing the examination will mean being laid off, deliberately avoiding concealment, and leading patients or carriers with health certificates to continue working.
Second, applying for a health certificate is only beneficial to customers, but it is both expensive and troublesome for quite a few staff members.
In fact, health certificates guarantee the health and safety of both parties, such as personnel engaged in toxic, harmful and radioactive operations. For them, health examination is an effective way to know their physical condition regularly and ensure their health and safety.