For the Czech Republic, the agreement applies to Social Security taxes related to
the old-age, survivors, and disability benefits (OASDI), as well as unemployment insurance.
Consequently, if a worker is exempt from Czech coverage as a result of the agreement,
no contributions are due for these programs.
On May 1, 2016, a supplementary agreement between the United States and the Czech
Republic entered into force as described in RS
02002.150A. Beginning on that date, the U.S. workers exempt from Czech old-age, survivors, disability
and unemployment insurance will also become exempt from paying Czech health insurance