All revenues and expenditures shall be included in the budget. In the case of enterprises and special trusts, only payments to or remittances from them need be included. The budget shall be balanced with respect to revenues and expenditures.
The budget for one or more fiscal years shall be set forth in a law enacted before the beginning of the first year and making separate provision for each year. The law may provide that various parts of the budget apply to different periods of time, divided by fiscal years.
The Budget Law may contain only such provisions as relate to revenues and expenditures and to the period for which it is enacted.
The Budget Law may specify that its provisions shall expire only upon promulgation of the next Budget Law.
