Which types of vehicles are authorized to have Red and White emergency lights?

The correct choice indicates that volunteer fire departments and ambulances are authorized to have red and white emergency lights. This is based on the specific regulations governing the use of emergency lights in New Hampshire, which allow certain emergency service vehicles to be equipped with lights that signify their role in responding to emergencies.

Volunteer fire departments are essential for community safety, and equipping them with emergency lights is critical for ensuring they can respond efficiently to incidents. Similarly, ambulances must have clear visual signals to navigate traffic safely and quickly, particularly during emergency responses. Red lights typically indicate an emergency situation, while white lights may enhance visibility, especially in low-light conditions.

This choice highlights the distinction between vehicles that have a direct role in providing emergency services versus those that do not, ensuring that only authorized vehicles can use specific lights that signal urgency to other road users.