If you find both a solid and a dashed yellow line, when must you NOT pass?

When you encounter both a solid and a dashed yellow line on the road, the presence of the solid yellow line indicates that passing is not permitted when the solid line is on your side of the road. This rule is designed to ensure safety, as the solid line signifies that there are potentially hazardous conditions or visibility issues that make passing dangerous. On the other hand, if the dashed line is on your side, it allows you to pass when it is safe to do so.

The other conditions listed, such as approaching traffic or wet roads, are not specific to the markings on the road. While those factors can influence safe driving decisions, they do not change the basic rule regarding solid and dashed lines. Thus, when there's a solid yellow line on your side, you must adhere to that restriction and refrain from passing, regardless of other circumstances.