Del. Code tit. 29, § 6337

The General Assembly may increase, decrease or eliminate items in the Budget Appropriation Bill in any way that is not contrary to the Constitution of the State, except as hereinafter provided, but neither House shall consider further or special appropriations, except in case of emergency, which fact shall be clearly stated in the appropriation bill therefor, until the Budget Appropriation Bill shall have been finally acted upon by both Houses. No items providing for appropriations for payment of interest or principal due on state debt shall be decreased or eliminated. The total budget appropriation items may not be increased in the aggregate to a point where they would exceed the state revenue from all sources as estimated in the budget.