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interstate commerce

The Constitution of the United States places the regulation of commerce between the several states (interstate commerce) under the supervision of the federal government. Until the decision of the Supreme Court in 1944 in the Southeastern Underwriters Association Case, insurance had been held not to be commerce and therefore not interstate commerce. That decision changed the entire outlook, so that today the business is subject to such regulation as the Congress chooses to exert, "to the extent that the states are not regulating insurance."

(See Southeastern Underwriters Association (SEUA), and S.E.U.A. Case.)