With regards the amendment of the Act on Civil Aviation, which becomes effective from January 1, 2023, the process of the background check certificates is subject to change. Background check certificates issued after January 1, 2023 are valid for 1 year (thereby the distinction between the standard and thorough background check is abolished). Detailed information pertaining to the validity of the certificates issued in the past as well as the administrative procedure can be found at a following link: https://www.caa.cz/en/background-checks/