Double solid yellow line prohibits crossing.

• A. Single solid white line
• B. Broken white line
• C. Double solid yellow line
• D. Center line

Answer: (C)

Two solid yellow center lines indicate a no-passing zone for traffic in both directions. They separate traffic traveling in opposite directions and tell you to stay in your lane because crossing the lines to pass another vehicle is not allowed. You may only cross them when turning left into a driveway or onto a side street if it’s safe and legal, but not to pass another vehicle. For contrast, a single solid line and a broken line convey different passing rules, while the double solid yellow specifically communicates that crossing for passing is prohibited.