Uniform Commercial Code (UCC): Primary legislation governing sale of goods in the US, particularly Article 2. Covers contract formation, performance, breach, and remedies. Mandatory for goods transactions over $500.

State Contract Laws: State-specific variations of contract law and UCC implementation, including local Statute of Frauds requirements and consumer protection regulations.

Magnuson-Moss Warranty Act: Federal law governing warranties on consumer products, requiring clear disclosure of warranty terms and conditions.

Federal Trade Commission Regulations: Federal regulations governing fair trade practices, advertising, and consumer protection in sales transactions.

Consumer Product Safety Laws: Federal and state regulations ensuring products meet safety standards and include appropriate warnings and instructions.

Fair Credit Reporting Act: Federal law regulating the collection and use of consumer credit information in sales transactions involving credit terms.

Truth in Lending Act: Federal law requiring disclosure of key terms and costs in consumer credit transactions and financing arrangements.

State Warranty Laws: State-specific regulations governing express and implied warranties in sales contracts.

Product Liability Laws: Laws governing manufacturer and seller liability for defective products and related damages.

E-SIGN Act: Electronic Signatures in Global and National Commerce Act governing the validity of electronic signatures and records in commercial transactions.

Data Privacy Laws: Federal and state regulations governing the collection, storage, and use of personal information in commercial transactions.