Level 0 Level 1 Level 2 Level 3 Level 4 Level 5
Level of automation
No automation Driver assistance Partial automation Condi­tional automation High automation Full automation
Responsibility
Human Transfer of responsibility
(from human to machine)
Machine
Requirement for a human driver
Driver must be fully in control of the vehicle in all driving situations Driver is weakly supported by ADAS in specific driving situations Driver is significantly supported by ADAS in specific driving situations Human intervention needed in broad ODDs** Human intervention needed in restricted ODDs** Driver is not required in any driving situation

** ODD = Operational Design Domain is the set of all conceivable conditions, scenarios, restrictions that an AV may encounter in a predefined area
Source: Swiss Re Institute adapted from Evercore ISI, SAE international