White-collar crime has not been integrated into criminological theory in part because its scientific implications have not as yet been fully recognized. This chapter describes violations of the price and rationing regulations issued by the Office of Price Administration. The interest is primarily in the violations by wholesaler and manufacturing concerns and retailers, not those by consumers, or persons stealing or counterfeiting ration currency. Violations by a seller fall into three main types. They are: direct violations in the form of straight over-ceiling charges, including overceiling purchases in the course of trade or business when such practices are forbidden; indirect overceiling sales, involving the use of evasive practices to cover up the violation and to hamper detection of a violation; and violations of record keeping and reporting requirements. Total violations of OPA regulations by business concerns, both retail and preretail, have undoubtedly been a large figure.