Definition - What does Appropriation Bill mean?
An appropriation bill is a law granting the government legal authority to allocate, designate and spend money from a government’s treasury.
An appropriation bill includes the amount authorized as well as the purpose of the money’s allocation. The language in an appropriation bill details where government agencies may spend tax money.
Justipedia explains Appropriation Bill
Passing an appropriation bill is one of the bread-and-butter activities conducted by legislatures in governments around the world. Lawmakers deliberate, debate and vote on how much money will be designated; who the money will be given to; and the language that specifies how and where this money will be spent by an appropriation bill.
In government tax law, agencies may be sued if they do not allocate tax dollars as called for by an appropriation bill.