Join the New Working Group 135 and Advance the Global CRL Framework for Emerging Aviation Technologies
EUROCAE launched WG‑135 to develop the Certification Readiness Level (CRL) Scale, a new and structured framework designed to help both industry and regulators assess how ready a technology, an organisation, and the associated regulatory pathway are for certification.
While existing frameworks such as TRL, MRL, IRL, and SRL measure technological or manufacturing maturity, none of them address certifiability. As disruptive aviation technologies continue to accelerate, this missing dimension is becoming increasingly significant for the sector.
The Clean Aviation CONCERTO project introduced the first CRL concept, assessing not only the maturity of a technology but also the readiness of organisations, processes, and competencies. WG‑135 will build on this foundation by refining the scale and expanding it into a globally recognised standard, suitable for airworthiness, operations, ATM, and even ICAO‑level applications.
WG‑135 will refine and formalise the Certification Readiness Level framework, incorporating global expert input to enhance the current scale. It will develop a recognised international standard that evaluates certification maturity across technologies, organisations, people, and processes. It will also establish a common language for certification readiness, enabling earlier identification of challenges and better alignment of expectations between industry and regulators
The Working Group, which held its kick-off meeting on 31 March, is seeking experts with backgrounds in certification and rulemaking, safety and system development, emerging aviation technologies, maturity assessment frameworks such as TRL or MRL, as well as regulatory strategy and compliance.
If you are interested, please contact the responsible Technical Programme Manager Atiqah Pillain.
WG‑126 ATC‑VCS Integration Seeks Experts for New Interface Standards
ATC and VCS systems are essential for effective air traffic control. Despite their complementary roles, no standard currently exists for their integration. WG-126 is actively working on a new standard to address this gap, aiming to reduce workload, improve safety, and bridge the ATM and ATC domains through seamless information exchange.
WG 126 seeks subject matter experts, system architects, and end users who can contribute to the definition of the REST APIs that will be used on the interface between ATC and VCS systems, including speech recognition patterns.
Desired expertise includes but is not limited to: ATC Operations (Air Traffic Controllers, Supervisors, ATC Training Organisations and Service Providers, ANSPs), and ATC/VCS systems (Developers, Architects, Communication Experts, Flight Planners).
If you are interested, please contact the responsible Technical Programme Manager Andrea Trimarchi.
WG‑67 VoIP for ATM Seeks Specialists for New VoIP Cybersecurity Standards
Voice communications play a crucial role in Air Traffic Management (ATM). In this context, Voice over Internet Protocol (VoIP) for ATM is the ideal solution to provide interoperability especially for the air-ground communications where several adjacent ATC centres belonging to different ANSPs share a ground radio station.
After the publications of ED-136, ED-137 and ED-138, as from 2009, and latest updates of ED-137C published in May 2020, the current objective of WG-67 is to update ED-136 and ED-138. ED-136A will address the introduction of a number of safety critical services and related environments for the application of VoIP for ATM such as remote ATSU operations, contingency scenarios, cross-border dynamic airspace configuration, flight centric operations, RPAS voice services and will allocate safety and performance requirements for each of these services. ED-138A will include the feedback received from current implementations on security and performance associated requirements. ANSPs are using this document as the specification of their Networks.
In January 2026, EUROCAE Technical Advisory Committee approved the establishment of sub-group 7 of EUROCAE WG-67 entrusted with the development of a new volume 6 of ED-137C Interoperability Standard for VOIP ATM Components that will contain VoIP in ATM cybersecurity provision. As a result, WG-67 is currently seeking participation to this newly established SG-7 from both industry and ANSPs with background and knowledge of encryption technology used in communication systems.
If you are interested, please contact the responsible Technical Programme Manager Andrea Trimarchi.
WG-28 Looks for Interest to Amend the GBAS Ground MOPS to Include Galileo E1/E5a and GPS L1/L5
A new GBAS service type based on Dual Frequency Multi Constellation (DFMC) GBAS, monikered GAST E, is under development in ICAO Navigation Systems Panel (NSP). It leverages more GNSS signals and core constellations to provide a more robust, resilient and flexible GBAS service. Compared to single frequency, GPS only GAST C and GAST D, GAST E delivers significantly higher availability and robustness, particularly under severe ionospheric conditions and during GNSS disturbances. It also aims on taking out some of the benefit in terms of greater siting flexibility for airports compared to the current GBAS CAT III concept. In the longer term the concept has the potential to support new applications and new entrants.
EUROCAE WG-28 plans to work in parallel with ICAO NSP and RTCA SC-159, to provide technical input to NSP, in order that a European GBAS MOPS based on Galileo E1/E5a and GPS L1/L5 can be ready soon after ICAO NSP endorsement of the corresponding SARPs. The aim is to ensure that European interests are considered in the ICAO standard, and that the result, the ground MOPS, can form the basis for ground station development and conformity assessments against the EASA ANS/ATM equipment specifications, EU 2023/1768.
WG-28 will shortly propose an update to their Terms of Reference to move forwards with standardisation of GAST E Ground MOPS, and interested organisations are invited to contact the responsible Technical Programme Manager, Mark Watson by close of business 20 May.