What license do you need to ride a quad in Spain?

In Spain, to ride a quad (ATV), you typically need a Class B driving license, which allows you to operate vehicles with a maximum weight of 3,500 kg. However, if the quad is classified as an agricultural vehicle or has specific restrictions, different requirements may apply. Additionally, riders must be at least 18 years old and wear a helmet. Always check local regulations, as they may vary by region.