For background on cross border transferability click here.
Cross border transferability (XBT) handbook
In May 2023, AWG released the first version XBT handbook.
| Edition | Release date | Redline | Major changes / additions |
| 2023.01 | May 2023 | N/A | N/A |
| 2024.01 | January 2024 | here | Appendix I |
| 2025.01 | March 2025 | here | Expansions of sections 2.0 (Overview of a typical XBT) and 3.3 (Issuance of an ECofA); added contemplated Appendix F, G, and M checklists with hyperlinks in text |
| 2025.02 | September 2025 | here | Reference to RCX Reports (Introduction); Special Flight Permits (3.4); Appendix G (Lessor/Owner Checklist), Appendix G (Lessor/Owner XBT Checklist); Appendix H (CAMO XBT Checklists), Appendix L (Process-Oriented Workflows …) |
The handbook addresses best practices to promote safety, simplification, and global harmonization in connection with changes of aircraft registration and nationality. AWG views the handbook (among other things) as a companion to the recently published ICAO XBT guidance. The handbook will be reviewed and updated regularly.
AWG XBT-related contributions to ICAO and related involvement
For background on AWG XBT-related contributions to ICAO and related involvement, click here.
Links to XBT forms
Links to XBT information documents
- “Analysis of Impact of Aircraft Age on Safety for Air Transport Jet Airplanes” AWG-commissioned study by Professor John Hansman of MIT
- AWG statement on cross-border transferability of aircraft principles
- EU – US bilateral agreement on aviation safety
- ICAO Airworthiness Manuals
- SGI Aviation Study (2011)
Acceptance of electronic forms of records
AWG supports the universal use of records created or stored in an electronic format (electronic records) and their acceptance by regulators and industry stakeholders as the functional equivalent of paper records in connection with the transfer of aircraft registration. Such acceptance by regulators would remove a barrier to greater use of electronic records by operators, which constrains their ability to realize the safety benefits and cost efficiencies throughout their operations (i.e., not just in connection with XBTs). Full realization of such benefits and efficiencies will also require development of protocols allowing records to be efficiently interchanged between different electronic systems.
Working relations with others on XBT
AWG maintains working relations with a wide range of governments, international organizations, and industry groups seeking cooperative work on cross-border transferability. These relations will be broadened and deepened, as AWG’s work in this field develops.
Parties and groups with which AWG consults on XBT include:
- the International Civil Aviation Organization (ICAO)
- European Aviation Safety Agency (EASA)
- the Federal Aviation Administration (FAA)
- civil aviation authorities in many other countries
- the International Air Transport Association (IATA); see attached AWG statement on select IATA documentation
- regional aircraft associations
- the International Society of Transport Aircraft Trading (ISTAT)
- aviation industry bodies involved in MRO activities