Congress decided in the Federal Reserve Act that all nationally chartered banks were required to become members of the Federal Reserve System. It requires them to purchase specified non-transferable stock in their regional Federal reserve bank and to set aside a stipulated amount of non-interest bearing reserves with their respective reserve bank (since 1980 all depository institutions have been required to set aside reserves with the Federal Reserve and be entitled to certain Federal Reserve services - Sections 2 and 19). State chartered banks have the option of becoming members of the Federal Reserve System and to thus be supervised, in part, by the Federal Reserve (Section 9). Member banks are entitled to have access to discounted loans at the discount window in their respective reserve bank, to a 6% annual dividend in their Federal reserve stock and to other services (Sections 13 and 7). The Act also permits Federal reserve banks to act as fiscal agents for the United States government (Section 15).