In what situation is one-handed steering allowed while driving?

One-handed steering is permissible in specific situations such as when backing up. This is because backing up often requires the driver to look over their shoulder to maintain a clear view of the situation behind the vehicle. When performing this maneuver, it's more practical for the driver to have their body turned and their head turned to look behind them, which naturally leads to the use of one hand on the steering wheel.

Other situations such as changing lanes or turning typically necessitate a stronger vehicle control that two-handed steering provides, allowing for more precise maneuvering and stability, especially when making quick adjustments. Parking also involves detailed control and precision, which is best achieved with both hands on the steering wheel to navigate tight spaces safely.