What is the minimum height for mounting headlamps on vehicles?

The minimum height for mounting headlamps on vehicles is established to ensure adequate visibility and safety for both the driver and other road users. The height of 24 inches is considered the optimal measure because it ensures that headlamps provide effective illumination of the roadway while avoiding excessive glare for oncoming traffic. This height enhances the driver's ability to see potential hazards and obstacles without compromising the safety of others on the road.

Higher or lower mounting positions could diminish the effectiveness of the headlamps or increase the likelihood of causing glare, which is a primary concern in vehicle safety regulations. Therefore, 24 inches balances these needs well, making it the correct choice for vehicle headlamp installation standards.