Federal Reserve Act
Dispersed throughout 12 USC; ch. 6, 38 Stat. 251 (December 23, 1913)
To provide for the establishment of Federal reserve banks, to furnish an elastic currency, to afford means of rediscounting commercial paper, to establish a more effective supervision of banking in the United States, and for other purposes.
Federal Reserve Act
I suppose this falls under "and for other purposes"?