Confederacao Nacional do Comercio de Bens, Servicos e Turismo v. Rio de Janeiro
The National Confederation of Commerce of Goods, Services, and Tourism filed a lawsuit against Rio de Janeiro's tobacco control law on smoke-free environments, which banned smoking in public or private collective environments. The Court unanimously held that the state legislative assembly did not exceed its competence to legislate public health. The Court noted that local regulations could be more restrictive than the federal regulation. Further, the judges established that (i) freedom of commerce must be interpreted together with the principle of consumer protection and (ii) restrictions on products that are potentially dangerous are legitimate.