205 ILCS 650/5

(a) Each foreign bank which is licensed to establish and maintain a representative office shall make, keep, and preserve at such office or at such other place as determined by the Commissioner, such books, accounts, and other records relating to the business of such office as the Commissioner may require.

(b) Each foreign bank which is licensed to establish and maintain a representative office shall file such reports, accompanied by a reasonable fee, as required and determined by the Commissioner.