Trade Single Window now provides online application for import licence for radioactive substances and irradiating apparatus. Electronic Radiation Licensing and Service System will not provide the relevant online application after 26 November 2023. To continue using the online application service, please visit the Trade Single Window website (https://www.tradesinglewindow.hk) to register as a user and subscribe to the service of application for import licence for radioactive substances and irradiating apparatus.