When are flares required on a boat?

The requirement for flares on a boat is linked to safety and the ability to signal for help when needed. Flares are crucial for situations where a vessel is far from shore and may not be easily visible to other boats or rescue personnel. Being more than a mile from shore increases the chances of being in a situation where quick signaling is essential for safety.

When you are over a mile from land, depending on local regulations, your boat is often in waters where immediate assistance is not readily available, making the possession of flares vital. Flares serve as a visual distress signal, drawing attention to your location should an emergency arise. It's important to note that regulations can vary, but in many jurisdictions, compliance with safety equipment requirements increases with distance from shore.

In contrast, there are scenarios where having flares is not as critical, such as during daylight hours where visibility is good, or when you are not in a distress situation, as indicated in other options. Hence, the correct context emphasizes the importance of flares when you are operating at a distance from shore, making them a crucial safety measure.