Notes: The reference level is established at decree 422/2016 <<https://www.sujb.cz/fileadmin/sujb/docs/legislativa/vyhlasky/422_Radiation_safety_fin.pdf>> Lead Agency: State Office for Nuclear Safety. Website: <<https://www.sujb.cz/fileadmin/sujb/docs/legislativa/zakony/Act_263_2016_web_20190726.pdf>>