Sentence:  The Act further <WSD>provides</WSD> for a `` floor '' or minimum allotment , set at the 1954 level , which is called the `` base '' allotment , and a `` ceiling '' or maximum allotment , for each State . 
Meaning of the word marked with <WSD> tags:  determine (what is to happen in certain contingencies), especially by including a proviso condition or stipulation