There is a service for people who are doing research for purely historical, literary or scientific purposes. These persons must submit an application for this purpose. When approval is given by a Principal Notary of the Government, and always if other conditions have been observed, the researchers in question will be exempted from the payment of fees that are normally requested in order to be able to see notarial acts. They also enjoy reduced payment rates for photocopying services provided by the Department. Researchers and scholars are given access to a number of volumes by a system of private appointments.