BiH citizens residing in the Republika Srpska (RS) entity can enter Serbia without a PCR test, but with mandatory 10-day isolation, while other BiH citizens must show a negative PCR test at the border, Adviser to the Director of the BiH Border Police Svevlad Hoffmann confirmed for N1, Monday

“BiH citizens from the RS must state the exact address of residence in order to be enlisted in Serbia's monitoring system,” Hoffmann said.
Earlier this month Serbia decided to ask from all foreigners entering the country to provide a negative PCR test at the border, no older than 48 hours.

The decision made by the Bosnian government that citizens of Serbia, Montenegro and Croatia do not need a negative PCR test when entering the country is still in force.