Civil Aircraft Immunity

Concept International Law Preferred

Rule that States must not use weapons against civil aircraft in flight, whatever their route or violations.

Independent referenceNot an official or legal definition
Sources citedSee the sources at the end of this page
Status Under reviewLast updated 11 October 2026
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Definition

In plain language

Civilian passenger and cargo planes may not be shot at by military forces. Even when a plane enters a country's airspace without permission, the State may force it to land but must not attack it.

Academic definition

Article 3 bis of the Chicago Convention, added by a 1984 Protocol after the downing of Korean Air Lines Flight 007 in 1983 and in force since 1998, requires States to refrain from the use of weapons against civil aircraft in flight and not to endanger the lives of persons on board and the safety of aircraft. The provision recognises that States may require a civil aircraft to land and may take measures consistent with international law to end violations. The principle does not give immunity in an absolute sense, since an aircraft used for military purposes can lose its civil character, but it is the core protection against shooting down airliners.

Classification

Term type
Concept
Category
International Law
Subject field
Air Law
Subfield
Protection of Civil Aviation
Difficulty level
Advanced
Grammatical category
noun phrase

Language variants

Alternative terms
  • immunity of civil aircraft from attack
  • protection of civil aircraft
Non-preferred terms
  • not_applicable
Abbreviations
  • not_applicable
Acronyms
  • not_applicable
Native terms
  • not_applicable
Transliteration
not_applicable
Pronunciation
not_applicable

Context

Legal effect: Binding

Scope

Covers protection of civil aircraft in flight from attack; sovereign immunity of State aircraft and diplomatic immunity are different, and the rules on airspace sovereignty are in a separate record.

Legal context

Chicago Convention Article 3 bis (in force 1 October 1998), Article 3 on civil and State aircraft, and humanitarian law rules on civilian objects. Incidents such as the downing of Iran Air Flight 655 in 1988 led to ICJ proceedings, Aerial Incident of 3 July 1988, later discontinued after a settlement.

Diplomatic context

Shoot-downs of airliners, such as KAL 007 in 1983 and Malaysia Airlines Flight MH17 in 2014, provoke Security Council debate, ICAO investigations and claims for compensation.

Institutional context

Overseen by the International Civil Aviation Organization, whose Council investigates incidents, and by national air forces applying interception procedures.

Historical context

The 1983 downing of KAL 007 led to ICAO adopting Article 3 bis in 1984, which entered into force on 1 October 1998.

Why it matters

The rule requires military forces to use interception, escort and warnings in place of force and protects the lives of passengers in a dispute over airspace.

Usage

Register: Legal

Usage note

'Immunity' here means protection from attack, not jurisdictional immunity; use 'protection of civil aircraft' for clarity.

Example

The council condemned the shooting down of the airliner as a violation of the protection owed to civil aircraft.

Example scenario

A passenger aircraft strays into the restricted airspace of State A. Air defence forces intercept it, signal it to follow them to a nearby airfield and let it land, as required by the rule that civil aircraft may not be attacked.

Common misuse

Reading the rule as giving civil aircraft immunity from interception or landing orders; it only forbids using weapons against them.

Not to be confused with

  • Airspace sovereignty
  • Immunity of State aircraft
  • Diplomatic immunity

Sources

  1. Convention on International Civil Aviation (Chicago Convention) (1944), International Civil Aviation Organization, Article 3 bis. icao.int
  2. Official definition. not_found_in_source
  3. Treaty reference. not_found_in_source
  4. Brownlie's Principles of Public International Law. not_found_in_source
  5. not_found_in_source. not_found_in_source

Source type: Treaty. Source reliability: Primary.

This entry is an independent reference definition, not an official or legally binding text. Where an official definition exists, it is linked above and is authoritative. Read our methodology.

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