On a two-lane road in the same direction, it is possible to continue driving in the **left lane** after overtaking, but only under certain conditions.

- **Main condition:** You must not **unduly disturb** vehicles traveling behind at a higher speed. This means that if a vehicle approaches from behind and is going faster, you must return to the right lane to avoid obstructing its path.

- **Use of the left lane:** The left lane is mainly used for overtaking. Once the overtaking is completed, it is advisable to return to the right lane as soon as possible, provided you are not overtaking another vehicle immediately afterward.

- **Safety and fluidity:** This rule aims to maintain **traffic flow** and ensure **safety** on the road, avoiding risky situations due to sudden speed changes or unexpected maneuvers.


In summary, you can stay in the left lane if you continue overtaking, but you must be attentive to vehicles approaching from behind and return to the right lane if necessary to avoid interfering with their circulation.