Notwithstanding Sections 16305 to 16305.7, inclusive, of the Government Code and any other law to the contrary, financial aid money in the possession of the California State University may be deposited by the chief fiscal officer of each campus of the California State University in a checking account in the centralized treasury system. The funds in the checking account shall be invested by the Treasurer. Interest earned thereon shall be deposited in the California State University Trust Fund. The interest earnings shall be continuously appropriated for expenditure by the Trustees of the California State University for financial aid, except that the interest earned from the investment of federal financial aid moneys may be returned to the United States if required by applicable federal law.