The main Technological Domain in which UNAVIA operates (directly or indirectly) are:
- Materials
- Mechanic
- Electric
- Quality and Management
- Systems and Software Engineering
- Space
- Ground Systems
- Air Traffic Management
- Terminology
The UNAVIA Technical Commissions have been structured mainly by Technological Domain, and in this way they are also able to operate a cross-fertilization, among the different Standardization Contexts, in relation to the Standards of the same Technological Domain.