The Chicago Convention (1944)
The Convention on International Civil Aviation — the Chicago Convention, signed on 7 December 1944 in Chicago — is the founding treaty of international air law. It establishes State sovereignty over airspace, created ICAO, and is the root of the annexes from which almost all the rules you learn in this subject descend. For a PPL pilot it answers two practical questions: why your licence is recognised abroad, and whose rules apply when you cross a border.
Sovereignty over airspace
The cornerstone of the Convention is Article 1: every State has complete and exclusive sovereignty over the airspace above its territory. Nobody may fly into or over a State's territory without its permission, and each State decides which rules apply there.
The practical consequence: when flying over the territory of another State, the flight is conducted according to the rules of the air of the overflown State — even if the pilot holds an ICAO-compliant licence issued elsewhere. Example: a VFR pilot with a German licence flying in Spain operates under SERA plus Spanish national specifics, not under German procedures.
The International Civil Aviation Organization (ICAO)
The Chicago Convention founded ICAO, the International Civil Aviation Organization:
- Seat: Montreal, Canada.
- Membership: today 193 member States.
- Mission: worldwide harmonisation of civil aviation for safety and standardisation.
ICAO creates guidelines and recommendations for international civil aviation which member States transpose into national law and apply. Its main instruments are:
- SARPs — Standards and Recommended Practices, published in the 19 Annexes to the Convention. Standards are to be applied by States; if a State cannot comply, it must notify the difference to ICAO (Art. 38). Recommended Practices are desirable but not binding.
- PANS — Procedures for Air Navigation Services, the operational procedures that put the SARPs into practice.
The 19 Annexes (selection)
| Annex | Topic |
|---|---|
| 1 | Personnel Licensing |
| 2 | Rules of the Air |
| 3 | Meteorological Service |
| 6 | Operation of Aircraft |
| 7 | Aircraft Nationality and Registration Marks |
| 8 | Airworthiness of Aircraft |
| 11 | Air Traffic Services |
| 12 | Search and Rescue |
| 13 | Aircraft Accident and Incident Investigation |
| 14 | Aerodromes |
| 15 | Aeronautical Information Services |
| 17 | Security |
| 19 | Safety Management |
Freedoms of the air
Traffic rights — the technical and commercial "freedoms of the air" negotiated at Chicago — are covered in the lesson "The Five Freedoms of the Air".
Implementation in Europe (EASA / EU)
In Europe, the ICAO annexes are implemented primarily through directly applicable EU regulations:
| Regulation | Subject |
|---|---|
| Reg (EU) 2018/1139 | Basic Regulation — EASA mandate |
| Reg (EU) 923/2012 (SERA) | Standardised European Rules of the Air (implements Annex 2) |
| Reg (EU) 965/2012 (Air OPS) | Part-CAT, Part-NCC, Part-NCO, Part-SPA, Part-SPO |
| Reg (EU) 1178/2011 (Aircrew) | Part-FCL, Part-MED |
| Reg (EU) 748/2012 (Part-21) | Initial airworthiness |
| Reg (EU) 1321/2014 | Continuing airworthiness (Part-M, Part-145) |
Member States may issue national deviations only within a narrow scope.
Germany (national)
In Germany the ICAO Convention is implemented through the Luftverkehrsgesetz (LuftVG) and the Luftverkehrs-Ordnung (LuftVO). See the lesson "National Law — Germany" for details.
Exam essentials
- The Chicago Convention (7 December 1944) is the founding treaty of international air law.
- Article 1: every State has complete and exclusive sovereignty over the airspace above its territory.
- A flight over foreign territory is conducted under the rules of the air of the overflown State, regardless of where the pilot's licence was issued.
- The Chicago Convention founded ICAO, seated in Montreal, today with 193 member States.
- ICAO publishes SARPs in 19 Annexes and PANS; States transpose them into national law and must notify ICAO of differences from Standards.
- Annex 2 (Rules of the Air) is implemented in Europe by SERA — Reg (EU) 923/2012.
- In Germany the Convention is implemented through the LuftVG and LuftVO.