What is the mandatory procedure for passenger boarding and disembarking on public transit buses in Argentina?

1. Passengers may board and jump off while the bus is in motion at 10 km/h
2. The bus must pull completely parallel to the sidewalk curb at designated stops, come to a complete standstill, and open doors only when fully stopped; passengers must board through the front door and alight through rear/center doors
3. Passengers should be dropped off in the center lane of avenues
4. Doors must remain open continuously during summer for cabin ventilation