Contract law varies from one state to another.
However, many of the basic principles of contract law are very similar from state to state. All states have adopted the Uniform Commercial Code. Article 2 of this Code covers the sale of goods and Article 2A covers leases. Both articles contain provisions related to contracts for the sale of goods and for leases of goods. These provisions are substantially similar, if not identical, in each state, and give the United States a uniform law of contracts for the sale and lease of goods.