The aim of this project is mainly to design a "National Interlibrary Loan Code." This code is based on the current status of interlibrary loan in Taiwan as well as various countries' interlibrary loan codes. This code provides general guidelines for the requesting and supplying of materials between libraries, including purposes, scopes, privileges and rights. According to this code, the different kinds of libraries in the country could lend and borrow books and materials between them.