The International Air Law Framework and the Chicago Convention
Foundations
Modern air law rests on two pillars: the Paris Convention 1919 (which introduced the certificate of airworthiness, crew licensing, and the principle that each State controls its own airspace) and the Chicago Convention 1944, formally the Convention on International Civil Aviation. Chicago created ICAO, gave it a permanent legal personality, and produced 19 Annexes plus a set of foundational articles that candidates must know cold.
Articles worth memorising
- Article 1: every State has complete and exclusive sovereignty over the airspace above its territory.
- Article 5: non-scheduled flights may cross or land for non-traffic purposes without prior permission, subject to the State's right to require notification.
- Article 6: scheduled international services require special permission or authorisation.
- Article 9: States may restrict or prohibit flight over certain zones, but must not discriminate between their own and foreign aircraft engaged in similar services.
- Articles 15 and 35: charges must be non-discriminatory; cargo restrictions apply to munitions and implements of war.
Freedoms and bilateralism
The nine freedoms of the air are not in the Convention text; they emerged from the International Air Services Transit Agreement (first two freedoms) and bilateral Air Services Agreements. Scheduled traffic rights are negotiated bilaterally, not granted automatically by Chicago. Watch for distractors that claim the Convention itself grants commercial rights.
Traps
Questions love to blur scheduled vs non-scheduled (Articles 5 and 6), to imply that ICAO can legislate (it cannot; it adopts Standards by Council/Assembly process), and to confuse the Convention with its Annexes, which are not treaties.
Rule of thumb
If the stem mentions a scheduled service and no agreement, the answer is permission required. If it mentions a technical stop for fuel, think Article 5 and non-traffic purposes.