| Subject | English | French |
| gen. | Communications, Navigation and Surveillance | Communications, navigation et surveillance |
| gen. | communications, navigation and surveillance services | Communications, navigation et surveillance |
| transp. | Communications, Navigation and Surveillance/Air Traffic Management | Communication, navigation et surveillance/gestion du trafic aérien |
| transp., avia. | Communications, Navigation and Surveillance/Air Traffic Management CNS/ATM Systems | systèmes de communication, navigation et surveillance, et de gestion du trafic aérien |