Guidelines issued on 27 May 2020 by the Public Health Authority of the SR list specific measures that employers should adopt in connection with a return of employees to workplaces in order to prevent or mitigate the spread of the COVID-19 pandemic. You can read the guidelines (in Slovak language) here:
http://www.uvzsr.sk/docs/info/covid19/Usmernenie_pre_pracoviska_UPR.pdf