OICA discussion of lane-keeping systems (ACSF B2) in terms of the level of automation where Level 2 requires constant driver supervision of the system and engagement with the vehicle operating environment and Level 3 places the operation of the vehicle entirely under the control of the automated system with the human driver as a fallback option in the event the system detects conditions beyond its operational boundaries. OICA is concerned to ensure that B2 systems will be permitted under both levels of automation.