Held. Yes. The judgment of the State Supreme Court is reversed.
Protectionism measures can be unconstitutional for their means as well as their ends.
Whatever the purpose of the statute, it may not be accomplished by discriminating against articles of out-of-state commerce, unless there is some reason, apart from their out-of-state origin, for doing so.
On its face, the statute imposes on out-of -state commerce the full burden of conserving the state’s landfill space.
The statute violates the principle of non-discrimination both on its face and by its effect
Dissent. Justice William Rehnquist (J. Rehnquist) stated that the Constitution does not require New Jersey to receive and dispose of solid waste from other States when doing so will inexorably increase the health problems of its citizens.