What does a double solid yellow line indicate?

A double solid yellow line indicates that no passing is permitted in either direction. This road marking is in place to ensure safety by preventing vehicles from crossing into oncoming traffic, which can be particularly hazardous in areas such as curves, hills, or other locations where visibility is limited. By having this clear indication, drivers are better able to adhere to safe driving practices and reduce the risk of collisions. The other options do not apply to the function of a double solid yellow line, which serves specifically to restrict passing rather than to address parking regulations, traffic direction, or designated times for passing.