According to the provisions of the Trademark Law, the period of validity of a registered trademark is ten years, counting from the date of approval. It can be renewed six months before the expiration of the validity period and the renewal fee can be paid. Each renewal is still valid for ten years. There is no limit to the number of renewals. A trademark controlled by an organization that has the ability to detect and supervise a commodity or service, but used by people other than it to prove the origin, raw materials, manufacturing methods, quality, accuracy or other specific qualities of the commodity or service.

For example, the third article of the Trademark Law (the third revised edition on October 27th, 21) defines a certification mark: "The certification mark mentioned in this Law refers to a commodity or service that is controlled by an organization that has the ability to supervise it and used by a unit or individual outside the organization to prove its origin, raw materials, manufacturing method, quality or other things. Article 2 of the Measures for the Registration and Administration of Collective Trademarks and Certification Trademarks (revised for the first time on December 3, 1998) defines certification trademarks as follows: "Certification trademarks refer to commodity trademarks or service trademarks controlled by organizations that have the ability to detect and supervise certain commodities or services and used by people other than them to prove the origin, raw materials, manufacturing methods, quality, accuracy or other specific qualities of the commodities or services." Geographical indications and names of origin can also be registered as certification marks under certain circumstances. Therefore, certification marks can be divided into two types: certification marks of origin and certification marks of quality. The certification trademark should be registered and controlled by an organization with the ability of detection and supervision, and used by others other than the registrant. The registrant cannot use the registered certification trademark himself.