You may cross a double yellow line to pass another vehicle if:

Crossing a double yellow line is generally prohibited; however, there are specific circumstances where it is permissible. When the line on your side of the road is a broken line, it indicates that you are allowed to pass other vehicles. The broken line signifies that the road is designed to permit such maneuvers, as long as it is safe to do so.

This means that when driving, if the markings indicate a broken line, you can legally and safely cross into the opposite lane to overtake another vehicle. The key factors to consider are the safety of the maneuver, visibility conditions, and ensuring no oncoming traffic is present that would make passing dangerous.

On the other hand, a solid line on your side of the road prohibits crossing, even if you are driving a motorcycle or not exceeding the speed limit. These regulations are designed to maintain safety on the roads and to prevent potentially hazardous situations.