To overtake **animals, pedestrians, two-wheeled vehicles, and animal-drawn vehicles** outside built-up areas, it is necessary to leave a minimum lateral separation of **1.50 meters**. This safety measure is crucial to prevent accidents and ensure the safety of all road users.

- **Animals on the road**: Animals, such as livestock, must travel on the right shoulder or close to the right edge of the road if there is no shoulder. This is especially relevant outside built-up areas, where roads may not have wide shoulders and animals may occupy part of the roadway.

- **Two-wheeled vehicles and animal-drawn vehicles**: These vehicles must also travel on the shoulder when there is no specific lane for them. On roads outside built-up areas, where traffic can be faster and visibility conditions may vary, it is essential to maintain a safe distance when overtaking them.

- **Safety and visibility**: Outside built-up areas, roads often have less lighting and signage, making it even more important to maintain an adequate safety distance to avoid collisions and protect the most vulnerable road users.

In summary, the regulation to leave a lateral separation of 1.50 meters when overtaking outside built-up areas is designed to protect the most vulnerable users and ensure safe circulation on roads where conditions can be more challenging.