What should you do if it is not safe to move over when encountering an emergency vehicle?

When you encounter an emergency vehicle with flashing lights and it is not safe to move over, the appropriate action is to slow down to a specified limit, which is typically 20 mph below the posted speed limit. This allows you to maintain control of your vehicle while still demonstrating consideration for the emergency personnel who may be working nearby. Reducing your speed helps to protect their safety and yours, as there is often increased risk in areas where emergency vehicles are present.

Adhering to the guideline of slowing to 20 mph below the speed limit, particularly in situations where moving over is not feasible, helps to ensure that you're complying with traffic laws designed to enhance safety for all road users. It reduces the overall speed of traffic around the emergency situation, making it safer for the responders to do their jobs and for other drivers to navigate past the scene safely.