How many years is the validity period of the approval number of the drug?

Regulations for the implementation of the Drug Administration Law, drug registration and other regulations, the validity of the drug approval number for 5 years, which is based on foreign experience while combining the national situation, not only the validity of the drug approval number is 5 years, other such as GMP certificates, production licenses, imported drugs, pharmaceutical product registration certificate, etc. validity of the same time to develop the same period of time at least to Facilitate supervision and management. In the near expiration of 6 months before the expiration of the validity period need to re-apply for (replacement, re-certification, re-registration, etc.), can also be called renewal.