Air traffic safety electronics personnel (ATSEP) is an International Civil Aviation Organization term for the electronic engineers involved with the creation and support of the ground-based electronic hardware and software systems used to support air navigation and air traffic management.
Airports Authority officers association India started celebrating CNSO day from 25 November 2013 later on from November 12, 2015, it started celebrated as ATSEP day.
Often employed by Air Navigation Service Providers, ATSEP are mainly engineers, technocrats, hardware and software specialists who are responsible for the specification, procurement, installation, integration, calibration, maintenance, safety assurance and monitoring of these systems.
The equipment ranges from discrete specialist electronic systems to commercial off-the-shelf computer hardware running specialist software designed and maintained to provide a safety-of-life service to aircraft.
The International Federation of Air Traffic Safety Electronics Associations is the global organisation for the representation of ATSEPs on professional matters.