Revisions made this time to the Measures are as follows. The first is straightening out the system of medical device standards; the second is clarifying procedures for enacting and amending medical device standards; the third is setting up the system of reexamining standards; the fourth is intensifying the implementation and supervision of the standards; the fifth is encouraging all walks of life to participate in such standardization. In particular, the Measures specify both the grounds to categorize medical device standards and the types of such standards, stating that medical device standards could be divided into mandatory standards and voluntary ones according to their binding effect, and also could be classified into basic standards, method standards, management standards and product standards, depending on the subjects that they regulate. Technical requirements that are indispensable to protect human health and life safety shall be developed into mandatory national standards and mandatory industrial standards for medical devices, while other technical requirements that are necessary to satisfy basic and general purposes, supplement the mandatory standards and play a pioneering role in the medical device sector should be finalized as the voluntary national standards and voluntary industrial standards for medical devices.