Background check usually takes 30 days from the date of receipt of the application (Section 71 of the Code of Administrative Procedure in conjunction with Section 85h of the Civil Aviation Act). In particularly complex cases, the time limit may be extended by a further 30 days (Article 71(3)(a) of the Code of Administrative Procedure). These limits are given in calendar days and are governed by the provisions of Sections 44(1) and 40 of the Code of Administrative Procedure.
It is advisable to apply for a background check well in advance of entering employment.