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).