. the deposits of gs bank usa are insured by the fdic to the extent provided by law . the federal reserve board requires depository institutions to maintain cash reserves with a federal reserve bank . the amount deposited by the firm 2019s depository institution held at the federal reserve bank was approximately $ 58.67 billion and $ 40.06 billion as of december 2012 and december 2011 , respectively , which exceeded required reserve amounts by $ 58.59 billion and $ 39