shall include a justification by each department or agency of the Government for any funding proposed for that department or agency in that plan. The justification shall include a justification of each line item in the budget of that department or agency based upon its effect on carrying out its mission and its effect, if any, on the gross domestic product of the United States and an additional funding level below the requested number that would allow that department or agency to complete all of its critical mission functions. 6. Total receipts shall include all receipts of the United States Government except those derived from borrowing. Total outlays shall include all outlays of the United States Government except for those for repayment of debt principal. 7. The Congress shall enforce and implement this article by appropriate legislation, which may rely on estimates of outlays and receipts. 8. The Congress may waive the provisions of this article for any fiscal year in which a declaration of war is in effect. The provisions of this article may be waived for any fiscal year in which the United States is engaged in military conflict or after any event which causes an imminent and serious military threat to national security and is so declared by a joint resolution or during which a natural disaster is declared by a joint resolution, adopted by a vote by two-thirds of each House, which becomes law. 9. This article shall take effect beginning with the earlier of the tenth fiscal year beginning after its ratification or the first fiscal year beginning after any fiscal year in which the budget of the United States is not in deficit. .