McCarran-Ferguson Act(redirected from McCarran-Ferguson Act of 1945)
Also found in: Legal.
Legislation in the United States, passed in 1945, that exempts insurance companies from anti-trust law, except in cases of boycott, intimidation or coercion. It also states that federal law does not preempt state regulation of insurance (that is, state regulations trump federal law) unless federal legislation explicitly states otherwise. The act remains controversial.