**Pedestrian-operated motor-cultivators** are not required to be equipped with a horn. This is because acoustic signals, such as the horn, are primarily used to warn other drivers in specific situations, such as avoiding accidents or overtaking on roads outside urban areas. However, pedestrian-operated motor-cultivators are not considered vehicles that require these acoustic warnings, as they do not operate under the same conditions as other motorized vehicles on public roads. Additionally, they are not mentioned in the categories of two or three-wheeled vehicles that have certain safety obligations, such as the use of helmets or seat belts. Therefore, it is not necessary for these motor-cultivators to have a horn.