Interstate Commerce Clause

Article I, Section 8, Clause 3 of the United States Constitution, known as the Commerce Clause, states that Congress has the exclusive authority to manage trade activities between the states and with foreign nations and Indian tribes. Courts and commentators have tended to discuss each of these three areas as a separate power granted to Congress. It is common to see the Commerce Clause referred to as "the Foreign Commerce Clause", "the Interstate Commerce Clause", and "the Indian Commerce Clause", each of which refers to the same single sentence in the constitution that covers all three.
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A clause of the U.S. Constitution which reserves to the federal government the right to regulate the conduct of business across state lines. Under this clause, for example, the U.S. Supreme Court has ruled that states may not inequitably restrict the disposal of out-of-state wastes in their jurisdictions.