<Li> they have renounced their United States citizenship </Li> <P> The carrying of weapons, either openly or concealed, is regulated by the states, and these laws have changed rapidly over the past decade . As of 2016, most states grant licenses to carry handguns on a shall - issue basis to qualified applicants . A few states leave the issuance of carry permits to the discretion of issuing authorities (called may - issue), while eleven states allow the carrying of firearms in a concealed manner without a permit (called Constitutional carry). Twenty - six states allow for open carrying of handguns without a permit while, in general, twenty states require a permit to do so and four states plus Washington D.C. ban open - carry of handguns . There have been legal challenges to concealed - carry laws, with different rulings to their constitutional validity . </P> <P> Gun ownership in the People's Republic of China (PRC) is strictly regulated by law . Generally, private citizens are not allowed to possess guns . Civilian ownership of guns is largely restricted to authorized, non-individual entities, including sporting organizations, authorized hunting reserves, and wildlife protection, management and research organizations . The chief exception to the general ban on individual firearm ownership is for the purpose of hunting . Illegal possession or sale of firearms may result in a minimum punishment of 3 years in prison, and penalties for arms trafficking include life imprisonment . </P> <P> In Hong Kong and Macau, gun ownership is tightly controlled and possession is mainly in the hands of law enforcement, military, and private security firms (providing protection for jewelers and banks). Under Section 13 of Cap 238 Firearms and Ammunition Ordinance of the Hong Kong law, a license is required for unrestricted firearms and ammunition . A license may be issued after a rigorous process to check for criminal records or a history of mental illness . License holders may store other firearms at home in a locked box, but ammunition must be kept at a different premises . Only fully automatic firearms appear prohibited; those found in possession without a license could be fined HKD $100,000 and face imprisonment for up to 14 years . </P>

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