The State of Ohio decides that Ohio's landfills are becoming too full at too rapid a pace,

Question:

The State of Ohio decides that Ohio's landfills are becoming too full at too rapid a pace, so it passes a law banning the import of waste generated out of state. Several landfill operators have contracts with out-of-state generators, so they sue the state to have the statute declared void. What arguments will each side make in this case? What is the most likely decision? Why?