What is a required lighting feature on a snowmobile?

A rear red light that is visible for 100 feet is indeed a required lighting feature on a snowmobile. This requirement is put in place to enhance safety by ensuring that the snowmobile can be seen from behind, which is crucial when riding on trails that might have other users or when traveling on public roads. The rear red light helps other riders and vehicles to identify the snowmobile in low visibility conditions, contributing to overall safety on the trails.

In addition to the rear red light, other lighting features such as headlights are also important for visibility, particularly the front red headlight that enhances forward visibility for both the operator and those approaching from the front. However, the specific requirement here focuses on the rear red light due to its critical role in ensuring that the snowmobile is visible to others from the rear.