The National Library strives to serve researches in all part of the country through the inter-library lending programme. Accordingly facilities are available to obtain required library material from the National Library if it is not available at a particular library. Clients of the National Library too have the opportunity of obtaining required material from another library. The National Union Catalogue is the source for locating the required material. Inter-library lending service is available both locally and internationally. Since 1995 the National Library uses IFLA vouchers for international inter-library lending activities.