Pilots of unmanned aircraft or drones whose mass is 250g or more, shall be subjected to theoretical examination online, and drone operators shall be registered at the web page of the Civil Aviation Agency (CAA). That is an obligation enacted pursuant to the application of the new Regulation on conditions for operating unmanned aircraft systems and model aircraft.
Registration for legal entities is done online at web link
https://www.caa.me/me/forma-pravna-lica
(https://www.caa.me/en/form-of-legal-entity) and for natural persons at web link