General shall not be removed except in the same manner in which he/she is appointed. (4) The National Audit Chamber shall assume auditing of the accounts of the National Executive, the National Legislature, the National Judiciary and the accounts of northern states, public institutions, corporations, companies and any other institutions as may be determined by law. (5) The Auditor General shall present an annual report to the President of the Republic and the National Assembly. (6) The National Auditor General shall be prohibited from engaging in all businesses in which constitutional office holders are not allowed to engage in pursuant to Article 75 of this Constitution. (7) The Southern Sudan Audit Chamber shall be established according to the Southern Sudan Interim Constitution. (8) The law shall organize the National and Southern Sudan Audit Chambers and shall specify the functions, terms and conditions of service of their employees. CHAPTER VIII INTERSTATE COMMERCE 206 (1) Free interstate commerce is guaranteed by this Constitution. No legislation shall impede interstate commerce, the flow of goods and services, capital or labour between the states. (2) There shall be no levies or fees or any other charges on interstate trade. CHAPTER IX TRANSITIONAL PROVISIONS FOR FINANCE AND BANKING New Currency 207 (1) The Central Bank of Sudan shall issue a new currency, the design of which shall reflect the cultural diversity of the Sudan. 90