In In Japan, the building law has revised to include the seismic isolation technology into the building code in 2000. Notifiation (Kokuji) 2009 and 1446 stand for seismic design code and certifiation system of seismic isolation devices, respectively. All seismic isolation devices must be certifid by Ministry of Land, Infrastructure, Transport and Tourism (MLIT) before using. In 2015, the factory production control (FPC) certifiation system to include inspection at factory was strengthened due to one company’s falsifying FPC test data. Since there is no independent testing laboratory in Japan, all the type and FPC tests are usually conducted by the manufacturer themselves. In 2017, changes of characteristics of seismic isolation devices due to the long-period and longduration ground motions have to be considered in the design in the determined long period areas. It is stipulated in the other code. The certification authorities known as notifid inspection bodies are even opened to private companies now. The devices have been roughly classifid into three kinds: isolators, dampers and restoring bearings. The Japan Society of Seismic Isolation (JSSI) has published a 750 pages catalog in 2009 to include all manufacturers for reference. The information about the certifiation authorities and certified devices can be checked easily vie web pages. This paper will focus on the performance properties of seismic isolation devices required for certifiation. Both type testing and FPC tests will be introduced. The details of lead rubber bearings and viscous fluid dampers are compared with EN15129 for better understanding. The contents of LRB include following categories: Materials, Dimensions, Horizontal capacities, Vertical properties, Horizontal properties, Dependency properties and Creep. The contents of viscous dampers include Materials, Dimensions, Horizontal properties and Dependency properties.