Animal ambulance

An animal ambulance may only use orange flashing lights and is not a priority vehicle according to the law, nor does it have any special right-of-way rules. An animal ambulance may not use blue flashing lights used by priority vehicles. Furthermore, the orange flashing lights may not be used while driving.

Article 1 of the Road Traffic Regulations (RVV).
Animal ambulance: a motor vehicle equipped and intended for the transport of sick and injured animals.