A self-employed person would otherwise be subject to compulsory coverage in both the
            United States and Switzerland is subject only to the laws of the country of which
            the person is a resident. If any question on residence arises, the appropriate agency
            of the country in which the person claims residency will make residency determinations.
         
         Since this rule applies only to U.S. or Swiss residents, it would not affect a dually
            covered worker who resides in a third country (e.g., a self-employed U.S. citizen
            who works in Switzerland but resides in France). For this reason, the special exception
            provision of the agreement will eliminate dual coverage for such a worker (see RS 02001.180).