1. The document discusses Australia's plain packaging legislation for tobacco products and the various legal challenges that have been brought against it. It outlines constitutional challenges in Australia that were dismissed, as well as ongoing arbitration under a bilateral investment treaty and disputes at the WTO. 2. It also discusses other countries considering similar legislation, the public health goals of reducing the appeal and misleading perceptions of tobacco, and advocacy efforts regarding bilateral investment treaties and obligations under the WHO Framework Convention on Tobacco Control. 3. The tobacco industry has attempted to use investment treaties to challenge tobacco regulations in other countries as well, but public health advocates argue these treaties should be reformed to allow for health exceptions or that plain packaging is consistent with a