In particular, basic documents published after the 18-19 centuries of the United States, the United Kingdom, Germany and France have been collected comprehensively. And, although materials of some countries in Asia, Africa, Middle East, Central and South America, Eastern and Northern Europe are hard to acquire in Japan, we make an effort to collect at least fundamental materials such as Gazettes or compilations of statutes in force. In closed stacks Back numbers including materials in microform and unbound materials excluding those on open shelves. No special registration is required to use the room. Reference service is available at the counter Materials on open shelves are free-access.
Materials are to be used only in the room, except when brought out to be photoduplicated.
Japanese materials before 1970 and foreign materials before 1949 are available only for regular service. Most copies of Japanese Kanpo, Horei Zensyo, Minutes of the Diet and the Imperial Diet and the Minutes of Committee meetings can be photocopied from reproduced editions or from microfilms in the course of the day.