Welcome to the consumer section of FindLaw's Oklahoma state laws center, with summaries of statutes that affect retail transactions, consumer credit, and related matters. Consumer laws typically involve other legal areas, since business, real estate, and criminal laws often protect consumer interests as well. Oklahoma consumer laws prohibit identity theft, Ponzi schemes, and pyramid schemes, while protecting purchasers of new cars from being stuck with "lemons." State laws also place limits on the amount of interest a lender may charge in the absence of a contractual agreement. Learn more about Oklahoma consumer laws in this section by clicking on one of the topics below.