Before a professional competence certificate expires, it is possible to request its prolongation. It could be done electronically (Form 9 - electronic signature or data mailbox required), in writing, or by delivering the printed form personally (contacts here). The following principles apply:
CTU may extend the validity of a certificate only when the certificate concerned is still valid and after paying relevant administrative fee. The application to extend the certificate validity must be delivered to CTU not later than one month before the expiration date of the certificate validity.
If the professional competence certificate validity expired, a new certificate can be issued within one year of the expiration if the applicant submit an application with a confirmation that they operated a radio transmitting equipment for which the certificate was issued for at least two years during the certificate validity. In this case, an administrative fee must be paid in the amount of CZK 400. A (renewed) certificate is issued to the applicant based on an application (Form 9 – “Application for the extension of the period of validity/the issue of a special competence certificate”. As a reason for issue of certificate choose "Vydání nového průkazu do jednoho roku po propadnutí doby platnosti původního průkazu").
More detailed information is available in Czech language only and can be reached by clicking „CZ“ in the upper right corner.